Olympians Who Set a World Record in Short Course Swimming (311)

Athlete Nation(s) Sport(s) Era Notes
Nathan Adrian USA SWI 2008—2016 4×100 m freestyle relay – 9 April 2008 - 20 December 2008 and 19 December 2009 - 11 December 2018: 3:08.44 (9 April 2008; Manchester, GBR), 3:03.30 (19 December 2009; Manchester, GBR); 4×100 m medley relay – 18 December 2009 - 20 December 2009: 3:20.71 (18 December 2009; Manchester, GBR)
Jasper Aerents BEL SWI 2012—2016 4×50 m freestyle relay – 15 December 2013 - 15 December 2013: 1:25.52 (15 December 2013; Herning, DEN)
Yannick Agnel FRA SWI 2012—2016 400 m freestyle – 15 November 2012 - present: 3:32.25 (15 November 2012; Angers, FRA)
Franziska van Almsick GER SWI 1992—2004 50 m freestyle – 4 November 1992 - 3 December 1993: 24.75 (4 November 1992; Schwäbisch Gmünd, GER); 100 m freestyle – 6 January 1993 - 2 December 1993: 53.46 (6 January 1993; Shanghai, CHN), 53.33 (10 January 1993; Beijing, CHN); 200 m freestyle – 9 January 1993 - 1 December 1995: 1:55.84 (9 January 1993; Beijing, CHN)
Therèse Alshammar SWE SWI 1996—2016 50 m freestyle – 11 December 1999 - 17 November 2007: 24.09 (11 December 1999; Lisboa, POR), 23.59 (18 March 2000; Athina, GRE); 100 m freestyle – 10 December 1999 - 8 August 2005: 52.80 (10 December 1999; Lisboa, POR), 52.17 (17 March 2000; Athina, GRE); 50 m butterfly – 12 November 2008 - 15 November 2008 and 17 October 2009 - present: 25.31 (12 November 2008; Stockholm, SWE), 24.75 (17 October 2009; Durban, RSA), 24.46 (11 November 2009; Stockholm, SWE), 24.38 (22 November 2009; Singapore, SGP); 100 m medley – 17 October 2009 - 11 November 2009: 58.51 (17 October 2009; Durban, RSA); 4×100 m medley relay – 5 April 2002 - 9 October 2004: 3:55.78 (5 April 2002; Moskva, RUS)
Ayari Aoyama JPN SWI 1996 100 m butterfly – 28 March 1997 - 19 April 1997: 58.24 (28 March 1997; Tokyo, JPN); 4×100 m medley relay – 4 April 1999 - 17 March 2000: 3:57.62 (4 April 1999; Hongkong, HKG)
Alia Atkinson JAM SWI 2004—2016 50 m breaststroke – 26 October 2016 - present: 28.64 (26 October 2016; Tokyo, JPN), 28.56 (6 October 2018; Budapest, HUN); 100 m breaststroke – 3 December 2014 - present: 1:02.36 tied (3 December 2014; Doha, QAT), 1:02.36 tied (26 August 2016; Chartres, FRA)
Coralie Balmy FRA SWI 2008—2016 200 m freestyle – 6 December 2008 - 14 December 2008: 1:53.18 (6 December 2008; Angers, FRA)
Joe Bartoch CAN SWI 2008—2012 4×100 m medley relay – 9 August 2009 - 18 December 2009: 3:23.33 (9 August 2009; Leeds, GBR)
Mireia Belmonte ESP SWI 2008—2016 400 m freestyle – 11 August 2013 - 4 October 2018: 3:54.52 (11 August 2013; Berlin, GER); 800 m freestyle – 10 August 2013 - present: 7:59.34 (10 August 2013; Berlin, GER); 1500 m freestyle – 29 November 2013 - 9 August 2014 and 12 December 2014 - 16 November 2019: 15:26.95 (29 November 2013; Castelló de la Plana, ESP), 15:19.71 (12 December 2014; Sabadell, ESP); 200 m butterfly – 3 December 2014 - present: 1:59.61 (3 December 2014; Doha, QAT); 400 m medley – 14 December 2008 - 22 November 2009, 3 December 2014 - 2 December 2015, and 12 August 2017 - present: 4:25.06 (14 December 2008; Rijeka, CRO), 4:19.86 (3 December 2014; Doha, QAT), 4:18.94 (12 August 2017; Eindhoven, NED)
Janine Belton GBR SWI 1996—2000 4×200 m freestyle relay – 10 August 2001 - 3 April 2002: 7:47.14 (10 August 2001; Norwich, GBR)
Lindsay Benko USA SWI 2000—2004 200 m freestyle – 7 April 2002 - 19 November 2005: 1:54.04 (7 April 2002; Moskva, RUS); 400 m freestyle – 26 January 2003 - 10 December 2005: 3:59.53 (26 January 2003; Berlin, GER)
Alain Bernard FRA SWI 2008—2012 100 m freestyle – 7 December 2008 - 12 December 2008: 45.69 (7 December 2008; Angers, FRA)
Paul Biedermann GER SWI 2008—2016 200 m freestyle – 16 November 2008 - present: 1:40.83 (16 November 2008; Berlin, GER), 1:39.37 (15 November 2009; Berlin, GER); 400 m freestyle – 14 November 2009 - 15 November 2012: 3:32.77 (14 November 2009; Berlin, GER)
Pernille Blume DEN SWI 2012—2016 4×50 m freestyle relay – 12 December 2013 - 7 December 2014: 1:37.04 (12 December 2013; Herning, DEN); 4×50 m medley relay – 15 December 2013 - 7 December 2016: 1:45.92 (15 December 2013; Herning, DEN), 1:44.81 (15 December 2013; Herning, DEN), 1:44.04 (5 December 2014; Doha, QAT)
Gustavo Borges BRA SWI 1992—2004 100 m freestyle – 2 July 1993 - 1 January 1994: 47.94 (2 July 1993; Santos, BRA); 4×100 m freestyle relay – 7 July 1993 - 16 March 2000: 3:13.97 (7 July 1993; Santos, BRA), 3:12.11 (5 December 1993; Palma de Mallorca, ESP), 3:10.45 (20 December 1998; Rio de Janeiro, BRA)
Susanne Börnike GDR SWI 1988 200 m breaststroke – 12 February 1989 - 3 December 1993: 2:22.92 (12 February 1989; Bonn, FRG)
Fréd Bousquet FRA SWI 2000—2016 50 m freestyle – 25 March 2004 - 12 August 2006: 21.10 (25 March 2004; East Meadow, USA); 4×100 m freestyle relay – 20 December 2008 - 19 December 2009: 3:04.98 (20 December 2008; Istres, FRA)
George Bovell TTO SWI 2000—2016 200 m medley – 25 March 2004 - 8 December 2005: 1:53.93 (25 March 2004; East Meadow, USA)
Lauren Boyle NZL SWI 2008—2016 1500 m freestyle – 9 August 2014 - 12 December 2014: 15:22.68 (9 August 2014; Wellington, NZL)
Grant Brits AUS SWI 2008 4×200 m freestyle relay – 31 August 2007 - 7 August 2009: 6:52.66 (31 August 2007; Melbourne, AUS)
Cameron van der Burgh RSA SWI 2008—2016 50 m breaststroke – 8 November 2008 - present: 26.08 (8 November 2008; Moskva, RUS), 25.94 (11 November 2008; Stockholm, SWE), 25.43 (8 August 2009; Pietermaritzburg, RSA), 25.25 (14 November 2009; Berlin, GER); 100 m breaststroke – 9 November 2008 - 15 November 2020: 56.88 (9 November 2008; Moskva, RUS), 56.39 (8 August 2009; Pietermaritzburg, RSA), 55.99 (9 August 2009; Pietermaritzburg, RSA), 55.61 (15 November 2009; Berlin, GER)
Ashley Callus AUS SWI 2000—2008 4×100 m medley relay – 4 September 2002 - 25 March 2004: 3:28.12 (4 September 2002; Melbourne, AUS)
Bronte Campbell AUS SWI 2012—2016 4×50 m freestyle relay (mixed) – 10 November 2013 - 14 December 2013: 1:31.13 (10 November 2013; Tokyo, JPN), 1:29.61 (10 November 2013; Tokyo, JPN)
Cate Campbell AUS SWI 2008—2016 100 m freestyle – 28 November 2015 - 3 August 2017 and 26 October 2017 - present: 50.91 (28 November 2015; Sydney, AUS), 50.25 (26 October 2017; Adelaide, AUS); 4×50 m freestyle relay (mixed) – 10 November 2013 - 14 December 2013: 1:31.13 (10 November 2013; Tokyo, JPN), 1:29.61 (10 November 2013; Tokyo, JPN); 4×50 m medley relay (mixed) – 5 November 2013 - 21 December 2013: 1:39.08 (5 November 2013; Singapore, SGP), 1:38.02 (5 November 2013; Singapore, SGP), 1:37.84 (9 November 2013; Tokyo, JPN)
Chad Carvin USA SWI 2000 4×200 m freestyle relay – 17 March 2000 - 7 August 2001: 7:01.33 (17 March 2000; Athina, GRE)
Milorad Čavić SRB
SCG
SWI 2000—2012 100 m butterfly – 12 December 2003 - 26 March 2004: 50.02 (12 December 2003; Dublin, IRL) (competed for Serbia and Montenegro)
Chao Na CHN SWI 1996 4×100 m freestyle relay – 19 April 1997 - 8 April 2006: 3:34.55 (19 April 1997; Göteborg, SWE)
Chen Hua CHN SWI 2000—2004 800 m freestyle – 2 December 2001 - 4 February 2002: 8:15.15 (2 December 2001; Shanghai, CHN)
Chen Qian CHN SWI 2012 4×200 m freestyle relay – 15 December 2010 - 3 December 2014: 7:35.94 (15 December 2010; Dubai, UAE)
Chen Yan CHN SWI 1996—2000 4×200 m freestyle relay – 17 April 1997 - 1 April 1999: 7:51.92 (17 April 1997; Göteborg, SWE)
César Cielo Filho BRA SWI 2008—2012 4×50 m medley relay – 4 December 2014 - 17 December 2017: 1:30.51 (4 December 2014; Doha, QAT)
Jon Cleveland CAN SWI 1988—1996 4×100 m medley relay – 22 February 1992 - 2 December 1993: 3:34.86 (22 February 1992; Winnipeg, CAN)
Piero Codia ITA SWI 2016 4×50 m medley relay – 12 December 2013 - 4 December 2014: 1:33.65 (12 December 2013; Herning, DEN), 1:32.83 (12 December 2013; Herning, DEN)
Michelle Coleman SWE SWI 2012—2016 4×50 m freestyle relay – 12 December 2013 - 12 December 2013 and 17 December 2017 - present: 1:37.21 (12 December 2013; Herning, DEN), 1:33.91 (17 December 2017; København, DEN)
Jack Conger USA SWI 2016 4×50 m freestyle relay – 14 December 2018 - present: 1:21.80 (14 December 2018; Hangzhou, CHN)
Haley Cope USA SWI 2004 50 m backstroke – 18 March 2000 - 2 December 2001: 27.25 (18 March 2000; Indianapolis, USA)
Kevin Cordes USA SWI 2016 4×50 m medley relay (mixed) – 21 December 2013 - 13 December 2018: 1:37.17 (21 December 2013; Glasgow, GBR)
Ritz Correia USA SWI 2004 4×100 m medley relay – 17 March 2000 - 5 April 2002: 3:57.46 (17 March 2000; Indianapolis, USA)
Natalie Coughlin USA SWI 2004—2012 100 m backstroke – 29 November 2001 - 22 February 2009: 57.08 (29 November 2001; East Meadow, USA), 56.71 (23 November 2002; East Meadow, USA), 56.51 (28 October 2007; Singapore, SGP); 200 m backstroke – 27 November 2001 - 23 February 2008: 2:03.62 (27 November 2001; East Meadow, USA); 100 m butterfly – 22 November 2002 - 28 August 2006: 56.34 (22 November 2002; East Meadow, USA); 100 m medley – 23 November 2002 - 10 August 2009: 58.80 (23 November 2002; East Meadow, USA); 4×100 m medley relay – 16 December 2011 - 11 December 2015: 3:45.56 (16 December 2011; Atlanta, USA)
Alicia Coutts AUS SWI 2008—2016 4×50 m medley relay (mixed) – 5 November 2013 - 21 December 2013: 1:39.08 (5 November 2013; Singapore, SGP), 1:38.02 (5 November 2013; Singapore, SGP), 1:37.84 (9 November 2013; Tokyo, JPN)
Kirsty Coventry ZIM IOC/SWI 2000—2016 200 m backstroke – 11 April 2008 - 14 November 2009: 2:00.91 (11 April 2008; Manchester, GBR); 200 m medley – 12 April 2008 - 6 November 2009: 2:06.13 (12 April 2008; Manchester, GBR); 400 m medley – 9 April 2008 - 28 November 2008: 4:26.52 (9 April 2008; Manchester, GBR)
Ian Crocker USA SWI 2000—2008 100 m freestyle – 27 March 2004 - 17 November 2007: 46.25 (27 March 2004; East Meadow, USA); 50 m butterfly – 10 October 2004 - 17 December 2005: 22.71 (10 October 2004; Indianapolis, USA); 100 m butterfly – 26 March 2004 - 7 November 2009: 49.77 (26 March 2004; East Meadow, USA), 49.07 (26 March 2004; East Meadow, USA); 4×100 m medley relay – 25 March 2004 - 13 April 2008: 3:25.38 (25 March 2004; East Meadow, USA), 3:25.09 (11 October 2004; Indianapolis, USA)
László Cseh HUN SWI 2004—2016 200 m medley – 8 December 2005 - 7 April 2006 and 13 December 2007 - 11 April 2008: 1:53.46 (8 December 2005; Trieste, ITA), 1:52.99 (13 December 2007; Debrecen, HUN); 400 m medley – 9 December 2005 - 16 December 2010: 4:00.37 (9 December 2005; Trieste, ITA), 3:59.33 (14 December 2007; Debrecen, HUN), 3:57.27 (11 December 2009; İstanbul, TUR)
Attila Czene HUN SWI 1992—2000 200 m medley – 23 March 2000 - 25 March 2004: 1:54.65 tied (23 March 2000; Minneapolis, USA)
Tommaso D'Orsogna AUS SWI 2012 4×50 m freestyle relay (mixed) – 10 November 2013 - 14 December 2013: 1:31.13 (10 November 2013; Tokyo, JPN), 1:29.61 (10 November 2013; Tokyo, JPN)
Josh Davis USA SWI 1996—2000 4×200 m freestyle relay – 17 March 2000 - 7 August 2001: 7:01.33 (17 March 2000; Athina, GRE)
Fred Deburghgraeve BEL SWI 1992—1996 100 m breaststroke – 17 February 1996 - 17 March 2000: 59.02 (17 February 1996; Bastogne, BEL), 58.79 (4 December 1998; Texas, USA)
Markus Deibler GER SWI 2008—2012 100 m medley – 7 December 2014 - 26 August 2016: 50.66 (7 December 2014; Doha, QAT)
Steffen Deibler GER SWI 2008—2016 50 m butterfly – 24 October 2009 - 6 October 2018: 22.06 (24 October 2009; Aachen, GER), 21.80 (14 November 2009; Berlin, GER)
Inge Dekker NED SWI 2004—2016 4×50 m freestyle relay – 7 December 2014 - 17 December 2017: 1:35.74 (7 December 2014; Doha, QAT), 1:34.24 (7 December 2014; Doha, QAT); 4×100 m freestyle relay – 8 April 2006 - 2 September 2007 and 12 April 2008 - present: 3:33.32 (8 April 2006; Shanghai, CHN), 3:29.42 (12 April 2008; Manchester, GBR), 3:28.22 (19 December 2008; Amsterdam, NED), 3:26.53 (5 December 2014; Dohar, QAT); 4×200 m freestyle relay – 9 April 2008 - 15 December 2010 and 3 December 2014 - present: 7:38.90 (9 April 2008; Manchester, GBR), 7:32.85 (3 December 2014; Doha, QAT)
Claire Donahue USA SWI 2012 4×50 m medley relay mixed – 21 December 2013 - 13 December 2018: 1:37.17 (21 December 2013; Glasgow, GBR)
Stanislav Donets RUS SWI 2008 100 m backstroke – 14 December 2008 - 21 December 2008 and 13 December 2009 - 18 December 2009: 49.32 (14 December 2008; Rijeka, CRO), 48.97 tied (13 December 2009; İstanbul, TUR); 4×100 m medley relay – 13 April 2008 - 9 August 2009 and 20 December 2009 - present: 3:24.29 (13 April 2008; Manchester, GBR), 3:19.16 (20 December 2009; Saint Petersburg, RUS)
Luca Dotto ITA SWI 2012—2016 4×50 m medley relay – 12 December 2013 - 12 December 2013: 1:33.65 (12 December 2013; Herning, DEN)
Duje Draganja CRO SWI 2000—2008 50 m freestyle – 11 April 2008 - 7 September 2008: 20.81 (11 April 2008; Manchester, GBR)
Caeleb Dressel USA SWI 2016 50 m freestyle – 20 December 2019 - present: 20.24 (20 December 2019; Las Vegas, USA); 100 m medley – 16 November 2020 - present: 49.88 (16 November 2020; Budapest, HUN); 4×50 m freestyle relay – 14 December 2018 - present: 1:21.80 (14 December 2018; Hangzhou, CHN); 4×100 m freestyle relay – 11 December 2018 - present: 3:03.03 (11 December 2018; Hangzhou, CHN); 4×50 m freestyle relay (mixed) – 12 December 2018 - present: 1:27.89 (12 December 2018; Hangzhou, CHN); 4×50 m medley relay (mixed) – 13 December 2018 - present: 1:36.40 (13 December 2018; Hangzhou, CHN)
Matt Dunn AUS SWI 1992—2000 400 m medley – 24 September 1998 - 23 February 2003: 4:04.24 (24 September 1998; Perth, AUS); 4×200 m freestyle relay – 18 April 1997 - 17 March 2000: 7:02.74 (18 April 1997; Göteborg, SWE), 7:01.60 (1 September 1999; Canberra, AUS)
Sophie Edington AUS SWI 2008 4×100 m medley relay – 9 October 2004 - 7 April 2006: 3:54.95 (9 October 2004; Indianapolis, USA)
Anthony Ervin USA SWI 2000—2016 50 m freestyle – 23 March 2000 - 28 January 2001: 21.21 (23 March 2000; Minneapolis, USA)
Franck Esposito FRA SWI 1992—2004 200 m butterfly – 1 February 1992 - 6 February 1993, 26 March 1994 - 2 February 1997, 14 January 2001 - 1 December 2001, and 8 December 2002 - 13 December 2008: 1:54.67 (1 February 1992; Paris, FRA), 1:53.05 (26 March 1994; Paris, FRA), 1:51.58 (14 January 2001; Antibes, FRA), 1:50.73 (8 December 2002; Antibes, FRA)
Teófilo Ferreira BRA SWI 1992 4×100 m freestyle relay – 7 July 1993 - 20 December 1998: 3:13.97 (7 July 1993; Santos, BRA), 3:12.11 (5 December 1993; Palma de Mallorca, ESP)
Sergey Fesikov RUS SWI 2008—2012 100 m medley – 14 November 2009 - 12 December 2009: 50.95 (14 November 2009; Berlin, GER); 4×50 m freestyle relay – 15 December 2013 - 14 December 2018: 1:23.36 (15 December 2013; Herning, DEN), 1:22.60 (6 December 2014; Doha, QAT); 4×50 m freestyle relay (mixed) – 14 December 2013 - 6 December 2014: 1:29.53 (14 December 2013; Herning, DEN)
Alessia Filippi ITA SWI 2004—2012 800 m freestyle – 12 December 2008 - 16 November 2012: 8:04.53 (12 December 2008; Rijeka, CRO)
Mark Foster GBR SWI 1988—2008 50 m freestyle – 17 February 1993 - 13 March 1994, 13 December 1998 - 23 March 2000, and 28 January 2001 - 25 March 2004: 21.60 (17 February 1993; Sheffield, GBR), 21.48 (13 December 1998; Sheffield, GBR), 21.31 (13 December 1998; Sheffield, GBR), 21.13 (28 January 2001; Paris, FRA); 50 m butterfly – 13 February 1993 - 8 February 1997 and 17 January 2001 - 18 December 2001: 23.72 (13 February 1993; Gelsenkirchen, GER), 23.72 tied (19 March 1994; Gelsenkirchen, GER), 23.68 (22 March 1994; Sheffield, GBR), 23.55 (11 February 1995; Sheffield, GBR), 23.45 (15 December 1995; Sheffield, GBR), 22.87 (17 January 2001; Sheffield, GBR)
Felipe França BRA SWI 2008—2016 4×50 m medley relay – 4 December 2014 - 17 December 2017: 1:30.51 (4 December 2014; Doha, QAT)
Missy Franklin USA SWI 2012—2016 200 m backstroke – 22 October 2011 - 5 December 2014: 2:00.03 (22 October 2011; Berlin, GER); 4×100 m medley relay – 16 December 2011 - 11 December 2015: 3:45.56 (16 December 2011; Atlanta, USA)
Lotte Friis DEN SWI 2008—2016 1500 m freestyle – 29 November 2009 - 29 November 2013: 15:28.65 (29 November 2009; København, DEN)
Lars Frölander SWE SWI 1992—2012 50 m butterfly – 19 March 2000 - 19 June 2000: 23.19 (19 March 2000; Athina, GRE); 100 m butterfly – 16 March 2000 - 14 December 2001: 50.59 (16 March 2000; Athina, GRE), 50.44 (17 March 2000; Athina, GRE); 4×100 m freestyle relay – 16 March 2000 - 9 April 2008: 3:09.57 (16 March 2000; Athina, GRE)
Chris Fydler AUS SWI 1992—2000 4×100 m medley relay – 4 April 1999 - 7 April 2002: 3:29.88 (4 April 1999; Hongkong, HKG)
Felicity Galvez AUS SWI 2004—2008 50 m butterfly – 11 April 2008 - 12 November 2008: 25.32 (11 April 2008; Manchester, GBR); 100 m butterfly – 13 April 2008 - 26 April 2008 and 11 November 2009 - 12 December 2009: 55.89 (13 April 2008; Manchester, GBR), 55.46 (11 November 2009; Stockholm, SWE)
Mark Gangloff USA SWI 2004—2008 4×100 m medley relay – 18 December 2009 - 20 December 2009: 3:20.71 (18 December 2009; Manchester, GBR)
Marcel Gery CAN SWI 1992 50 m butterfly – 23 February 1990 - 29 March 1991: 24.11 (23 February 1990; Leicester, GBR)
Nick Gillingham GBR SWI 1988—1996 200 m breaststroke – 20 October 1991 - 28 August 1993: 2:07.93 (20 October 1991; Birmingham, GBR)
Fabien Gilot FRA SWI 2004—2016 4×100 m freestyle relay – 20 December 2008 - 19 December 2009: 3:04.98 (20 December 2008; Istres, FRA)
Yoris Grandjean BEL SWI 2008 4×50 m freestyle relay – 15 December 2013 - 15 December 2013: 1:25.52 (15 December 2013; Herning, DEN)
Andrey Grechin RUS SWI 2008—2016 4×50 m medley relay (mixed) – 12 October 2013 - 20 October 2013: 1:41.70 (12 October 2013; Moskva, RUS)
Joel Greenshields CAN SWI 2008 4×200 m freestyle relay – 7 August 2009 - 16 December 2010: 6:51.05 (7 August 2009; Leeds, GBR)
Steve Gregg USA SWI 1976 50 m freestyle – 21 March 1992 - 17 February 1993: 21.64 (21 March 1992; Dallas, USA)
Matt Grevers USA SWI 2008—2012 100 m backstroke – 12 December 2015 - 22 December 2017: 48.92 (12 December 2015; Indianapolis, USA); 4×100 m freestyle relay – 19 December 2009 - 11 December 2018: 3:03.30 (19 December 2009; Manchester, GBR); 4×50 m freestyle relay (mixed) – 6 December 2014 - 16 December 2017: 1:28.57 (6 December 2014; Doha, QAT)
Chantal Groot NED SWI 2000—2008 4×100 m freestyle relay – 8 April 2006 - 2 September 2007: 3:33.32 (8 April 2006; Shanghai, CHN)
Michael Groß FRG SWI 1984—1988 200 m freestyle – 1 December 1981 - 11 February 1990: 1:44.50 (1 December 1981; Bremen, FRG), 1:44.14 (5 February 1988; Boulogne-Billancourt, FRA); 800 m freestyle – 3 February 1985 - 25 July 1993: 7:38.75 (3 February 1985; Bonn, FRG)
Marieke Guehrer AUS SWI 2004 50 m backstroke – 6 November 2009 - 10 November 2009: 26.17 (6 November 2009; Moskva, RUS); 50 m butterfly – 15 November 2008 - 17 October 2009: 24.99 (15 November 2008; Berlin, GER)
Guilherme Guido BRA SWI 2008—2016 4×50 m medley relay – 4 December 2014 - 17 December 2017: 1:30.51 (4 December 2014; Doha, QAT)
Dániel Gyurta HUN IOC/SWI 2004—2016 200 m breaststroke – 13 December 2009 - 20 November 2016: 2:00.67 (13 December 2009; İstanbul, TUR), 2:00.48 (31 August 2014; Dubai, UAE)
Grant Hackett AUS SWI 2000—2008 400 m freestyle – 2 April 1999 - 14 November 2009: 3:35.01 (2 April 1999; Hongkong, HKG), 3:34.58 (18 July 2002; Sydney, AUS); 800 m freestyle – 3 August 2001 - present: 7:25.28 (3 August 2001; Perth, AUS), 7:23.42 (20 July 2008; Melbourne, AUS); 1500 m freestyle – 27 September 1998 - 4 December 2015: 14:19.55 (27 September 1998; Perth, AUS), 14:10.10 (7 August 2001; Perth, AUS); 4×200 m freestyle relay – 18 April 1997 - 1 September 1999 and 7 August 2001 - 7 August 2009: 7:02.74 (18 April 1997; Göteborg, SWE), 6:56.41 (7 August 2001; Perth, AUS), 6:52.66 (31 August 2007; Melbourne, AUS)
Han Xue CHN SWI 1996—2000 50 m breaststroke – 7 January 1996 - 26 September 1999: 31.11 (7 January 1996; Hongkong, HKG), 30.98 (11 January 1996; Beijing, CHN), 30.88 (29 January 1997; Glasgow, GBR), 30.77 (2 February 1997; Gelsenkirchen, GER)
Brendan Hansen USA SWI 2004—2012 4×100 m medley relay – 25 March 2004 - 13 April 2008: 3:25.38 (25 March 2004; East Meadow, USA), 3:25.09 (11 October 2004; Indianapolis, USA)
Brooke Hanson AUS SWI 2004 4×100 m medley relay – 9 October 2004 - 7 April 2006: 3:54.95 (9 October 2004; Indianapolis, USA)
Louise Hansson SWE SWI 2016 4×50 m freestyle relay – 12 December 2013 - 12 December 2013: 1:37.21 (12 December 2013; Herning, DEN)
Sophie Hansson SWE SWI 2014—2016 4×50 m freestyle relay – 17 December 2017 - present: 1:33.91 (17 December 2017; København, DEN)
Jessica Hardy USA SWI 2012 50 m breaststroke – 10 April 2008 - 26 October 2016: 29.58 (10 April 2008; Manchester, GBR), 29.45 (17 October 2009; Durban, RSA), 29.36 (7 November 2009; Moskva, RUS), 28.96 (11 November 2009; Stockholm, SWE), 28.80 (14 November 2009; Berlin, GER); 4×100 m medley relay – 11 April 2008 - 9 August 2009 and 18 December 2009 - 16 December 2011: 3:51.36 (11 April 2008; Manchester, GBR), 3:47.97 (18 December 2009; Manchester, GBR)
Brent Hayden CAN SWI 2004—2012 4×200 m freestyle relay – 7 August 2009 - 16 December 2010: 6:51.05 (7 August 2009; Leeds, GBR); 4×100 m medley relay – 9 August 2009 - 18 December 2009: 3:23.33 (9 August 2009; Leeds, GBR)
He Cihong CHN SWI 1992—1996 200 m backstroke – 5 December 1993 - 4 August 2001: 2:06.09 (5 December 1993; Palma de Mallorca, ESP); 4×100 m medley relay – 5 December 1993 - 4 April 1999: 3:57.73 (5 December 1993; Palma de Mallorca, ESP)
Femke Heemskerk NED SWI 2008—2016 4×50 m freestyle relay – 7 December 2014 - 17 December 2017: 1:34.24 (7 December 2014; Doha, QAT); 4×100 m freestyle relay – 9 September 2007 - 19 December 2008 and 5 December 2014 - present: 3:30.85 (9 September 2007; Eindhoven, NED), 3:29.42 (12 April 2008; Manchester, GBR), 3:26.53 (5 December 2014; Dohar, QAT); 4×200 m freestyle relay – 9 April 2008 - 15 December 2010 and 3 December 2014 - present: 7:38.90 (9 April 2008; Manchester, GBR), 7:32.85 (3 December 2014; Doha, QAT); 4×50 m freestyle relay (mixed) – 16 December 2017 - 12 December 2018: 1:28.39 (16 December 2017; København, DEN)
François Heersbrandt BEL SWI 2008—2016 4×50 m freestyle relay – 15 December 2013 - 15 December 2013: 1:25.52 (15 December 2013; Herning, DEN)
Ryan Held USA SWI 2016 4×50 m freestyle relay – 14 December 2018 - present: 1:21.80 (14 December 2018; Hangzhou, CHN); 4×100 m freestyle relay – 11 December 2018 - present: 3:03.03 (11 December 2018; Hangzhou, CHN); 4×50 m freestyle relay (mixed) – 12 December 2018 - present: 1:27.89 (12 December 2018; Hangzhou, CHN)
Mark Henderson USA SWI 1996 4×100 m medley relay – 2 December 1993 - 23 December 1996: 3:32.57 (2 December 1993; Palma de Mallorca, ESP)
Mélanie Hénique FRA SWI 2016 4×50 m freestyle relay (mixed) – 21 October 2013 - 10 November 2013: 1:31.14 (21 October 2013; Doha, QAT); 4×50 m medley relay (mixed) – 20 October 2013 - 5 November 2013: 1:39.54 (20 October 2013; Doha, QAT)
Penny Heyns RSA SWI 1992—2000 50 m breaststroke – 26 September 1999 - 3 December 2001: 30.60 (26 September 1999; Durban, RSA); 100 m breaststroke – 4 September 1999 - 6 April 2002: 1:05.57 (4 September 1999; Johannesburg, RSA), 1:05.40 (26 September 1999; Durban, RSA)
James Hickman GBR SWI 1996—2004 100 m butterfly – 14 December 1998 - 2 September 1999: 51.02 (14 December 1998; Sheffield, GBR); 200 m butterfly – 28 March 1998 - 14 January 2001: 1:51.76 (28 March 1998; Paris, FRA)
Josef Hladky GER SWI 1992 100 m medley – 16 May 1991 - 21 November 1992: 54.66 (16 May 1991; Bonn, GER)
Margaret Hoelzer USA SWI 2004—2008 4×100 m medley relay – 11 April 2008 - 9 August 2009 and 18 December 2009 - 16 December 2011: 3:51.36 (11 April 2008; Manchester, GBR), 3:47.97 (18 December 2009; Manchester, GBR)
Anders Holmertz SWE SWI 1984—1996 400 m freestyle – 4 February 1990 - 11 February 1995: 3:40.81 (4 February 1990; Paris, FRA); 4×100 m freestyle relay – 19 March 1989 - 7 July 1993: 3:14.00 (19 March 1989; Malmö, SWE)
Joakim Holmquist SWE SWI 1988—1992 4×100 m freestyle relay – 19 March 1989 - 7 July 1993: 3:14.00 (19 March 1989; Malmö, SWE)
Katinka Hosszú HUN SWI 2004—2016 100 m backstroke – 4 December 2014 - 27 October 2019: 55.03 (4 December 2014; Doha, QAT); 200 m backstroke – 5 December 2014 - present: 1:59.23 (5 December 2014; Doha, QAT); 100 m medley – 8 August 2013 - present: 57.73 (8 August 2013; Eindhoven, NED), 57.50 (8 August 2013; Eindhoven, NED), 57.45 (11 August 2013; Berlin, GER), 57.25 (28 August 2014; Doha, QAT), 56.86 (1 September 2014; Dubai, UAE), 56.70 (5 December 2014; Doha, QAT), 56.67 (4 December 2015; Netanya, ISR), 56.51 (7 August 2017; Berlin, GER); 200 m medley – 7 August 2013 - present: 2:04.39 (7 August 2013; Eindhoven, NED), 2:03.20 (7 August 2013; Eindhoven, NED), 2:02.61 (27 August 2014; Doha, QAT), 2:02.13 (31 August 2014; Dubai, UAE), 2:01.86 (6 December 2014; Doha, QAT); 400 m medley – 11 August 2013 - 12 August 2017: 4:20.85 (11 August 2013; Berlin, GER), 4:20.83 (28 August 2014; Doha, QAT), 4:19.46 (2 December 2015; Netanya, ISR)
Claire Huddart GBR SWI 1996—2000 4×200 m freestyle relay – 16 March 2000 - 10 August 2001: 7:49.11 (16 March 2000; Athina, GRE)
Geoff Huegill AUS SWI 2000—2004 50 m butterfly – 18 December 2001 - 10 October 2004: 22.84 (18 December 2001; Melbourne, AUS), 22.84 tied (22 January 2002; Stockholm, SWE), 22.74 (26 January 2002; Berlin, GER); 4×100 m medley relay – 23 December 1996 - 4 April 1999 and 4 September 2002 - 25 March 2004: 3:30.91 (23 December 1996; Melbourne, AUS), 3:30.66 (17 April 1997; Göteborg, SWE), 3:28.12 (4 September 2002; Melbourne, AUS)
Misty Hyman USA SWI 2000 50 m butterfly – 19 April 1997 - 29 November 1997: 26.55 (19 April 1997; Göteborg, SWE); 100 m butterfly – 1 December 1996 - 28 March 1997: 58.29 (1 December 1996; Sainte-Foy, CAN)
Emma Igelström SWE SWI 2000 50 m breaststroke – 13 December 2001 - 4 January 2002, 23 January 2002 - 27 January 2002, 14 March 2002 - 26 September 2004: 30.56 tied (13 December 2001; Antwerpen, BEL), 30.43 (23 January 2002; Stockholm, SWE), 30.24 (14 March 2002; Göteborg, SWE), 29.96 (2 April 2002; Moskva, RUS); 100 m breaststroke – 6 April 2002 - 28 November 2003: 1:05.38 (6 April 2002; Moskva, RUS), 1:05.29 (15 March 2003; Stockholm, SWE), 1:05.11 (16 March 2003; Stockholm, SWE); 4×100 m medley relay – 5 April 2002 - 9 October 2004: 3:55.78 (5 April 2002; Moskva, RUS)
Dan Izotov RUS SWI 2008—2016 4×200 m freestyle relay – 16 December 2010 - 14 December 2018: 6:49.04 (16 December 2010; Dubai, UAE); 4×100 m medley relay – 20 December 2009 - present: 3:19.16 (20 December 2009; Saint Petersburg, RUS)
Jo Jackson GBR SWI 2004—2012 400 m freestyle – 8 August 2009 - 24 November 2012: 3:54.92 (8 August 2009; Leeds, GBR)
Nicola Jackson GBR SWI 2000 4×200 m freestyle relay – 16 March 2000 - 3 April 2002: 7:49.11 (16 March 2000; Athina, GRE), 7:47.14 (10 August 2001; Norwich, GBR)
Carlos Jayme BRA SWI 2000—2004 4×100 m freestyle relay – 20 December 1998 - 16 March 2000: 3:10.45 (20 December 1998; Rio de Janeiro, BRA)
Otylia Jędrzejczak POL SWI 2000—2012 200 m butterfly – 13 December 2007 - 23 February 2008: 2:03.53 (13 December 2007; Debrecen, HUN)
Louise Jöhncke SWE SWI 1996—2000 4×200 m freestyle relay – 1 April 1999 - 16 March 2000: 7:51.70 (1 April 1999; Hongkong, HKG)
Brian Johns CAN SWI 2000—2008 400 m medley – 23 February 2003 - 9 December 2005: 4:02.72 (23 February 2003; Victoria, CAN)
Leisel Jones AUS SWI 2000—2012 100 m breaststroke – 28 November 2003 - 18 March 2004 and 27 August 2006 - 19 December 2009: 1:05.09 (28 November 2003; Melbourne, AUS), 1:04.12 (27 August 2006; Hobart, AUS), 1:03.86 (28 August 2006; Hobart, AUS), 1:03.72 (26 April 2008; Canberra, AUS), 1:03.00 (14 November 2009; Berlin, GER); 200 m breaststroke – 29 November 2003 - 14 March 2009 and 15 November 2009 - 18 December 2009: 2:17.75 (29 November 2003; Melbourne, AUS), 2:15.42 (15 November 2009; Berlin, GER)
Sanja Jovanović CRO SWI 2004—2012 50 m backstroke – 15 December 2007 - 7 December 2014: 26.50 (15 December 2007; Debrecen, HUN), 26.37 (13 April 2008; Manchester, GBR), 26.23 (13 December 2008; Rijeka, CRO), 25.70 (12 December 2009; İstanbul, TUR)
Kaio Márcio BRA SWI 2004—2016 50 m butterfly – 17 December 2005 - 25 October 2008: 22.60 (17 December 2005; Santos, BRA); 200 m butterfly – 10 November 2009 - 7 August 2013: 1:49.11 (10 November 2009; Stockholm, SWE)
Anna-Karin Kammerling SWE SWI 2000—2008 50 m butterfly – 10 December 1999 - 11 April 2008: 25.64 (10 December 1999; Lisboa, POR), 25.60 (15 December 2000; Valencia, ESP), 25.36 (25 January 2001; Stockholm, SWE), 25.33 (12 March 2005; Göteborg, SWE); 4×100 m medley relay – 5 April 2002 - 9 October 2004: 3:55.78 (5 April 2002; Moskva, RUS)
Louise Karlsson SWE SWI 1992—1996 100 m medley – 22 November 1992 - 26 February 1998: 1:01.03 (22 November 1992; Espoo, FIN), 1:01.03 tied (26 January 1997; Malmö, SWE)
Angela Kennedy AUS SWI 1996 50 m butterfly – 12 February 1995 - 19 April 1997: 26.56 (12 February 1995; Sheffield, GBR); 100 m butterfly – 18 February 1995 - 1995 and December 1995 - 1 December 1996: 58.77 (18 February 1995; Gelsenkirchen, GER), 58.56 (December 1995; Rio de Janeiro, BRA)
Lilly King USA SWI 2016 4×50 m medley relay – 7 December 2016 - 12 December 2018: 1:43.27 (7 December 2016; Windsor, CAN)
Bill Kirby AUS SWI 2000 4×200 m freestyle relay – 18 April 1997 - 17 March 2000 and 7 August 2001 - 31 August 2007: 7:02.74 (18 April 1997; Göteborg, SWE), 7:01.60 (1 September 1999; Canberra, AUS), 6:56.41 (7 August 2001; Perth, AUS)
Tara Kirk USA SWI 2004 100 m breaststroke – 18 March 2004 - 27 August 2006: 1:04.79 (18 March 2004; Austin, USA)
Michael Klim AUS SWI 1996—2004 50 m butterfly – 5 September 1999 - 17 January 2001: 23.21 (5 September 1999; Canberra, AUS), 23.11 (19 June 2000; Canberra, AUS); 100 m butterfly – 22 January 1998 - 14 December 1998 and 2 September 1999 - 16 March 2000: 51.16 (22 January 1998; Sydney, AUS), 51.07 (22 January 1998; Sydney, AUS), 50.99 (2 September 1999; Canberra, AUS); 4×200 m freestyle relay – 18 April 1997 - 17 March 2000 and 7 August 2001 - 31 August 2007: 7:02.74 (18 April 1997; Göteborg, SWE), 7:01.60 (1 September 1999; Canberra, AUS), 6:56.41 (7 August 2001; Perth, AUS); 4×100 m medley relay – 23 December 1996 - 7 April 2002: 3:30.91 (23 December 1996; Melbourne, AUS), 3:30.66 (17 April 1997; Göteborg, SWE), 3:29.88 (4 April 1999; Hongkong, HKG)
Yana Klochkova UKR SWI 2000—2008 400 m medley – 20 January 2002 - 9 April 2008: 4:27.83 (20 January 2002; Paris, FRA)
Marco Koch GER SWI 2012—2016 200 m breaststroke – 20 November 2016 - 13 December 2018: 2:00.44 (20 November 2016; Berlin, GER)
Sarah Köhler GER SWI 2016 1500 m freestyle – 16 November 2019 - present: 15:18.01 (16 November 2019; Berlin, GER)
Rachel Komisarz USA SWI 2004 4×100 m medley relay – 11 April 2008 - 9 August 2009: 3:51.36 (11 April 2008; Manchester, GBR)
Andrey Korneyev RUS SWI 1996 200 m breaststroke – 28 March 1998 - 19 March 2000: 2:07.79 (28 March 1998; Paris, FRA)
Yevgeny Korotyshkin RUS SWI 2004—2012 100 m butterfly – 7 November 2009 - 4 December 2014: 48.99 (7 November 2009; Moskva, RUS), 48.48 (15 November 2009; Berlin, GER); 4×100 m medley relay – 13 April 2008 - 9 August 2009 and 20 December 2009 - present: 3:24.29 (13 April 2008; Manchester, GBR), 3:19.16 (20 December 2009; Saint Petersburg, RUS)
Kristy Kowal USA SWI 2000 4×100 m medley relay – 17 March 2000 - 5 April 2002: 3:57.46 (17 March 2000; Indianapolis, USA)
Gordan Kožulj CRO SWI 1996—2008 200 m backstroke – 21 January 2001 - 7 April 2002: 1:51.62 (21 January 2001; Berlin, GER)
Lenny Krayzelburg USA SWI 2000—2004 100 m backstroke – 5 February 2000 - 19 March 2000: 51.28 (5 February 2000; Berlin, GER); 200 m backstroke – 18 November 1999 - 13 October 2000: 1:52.47 (18 November 1999; College Park, USA), 1:52.43 (6 February 2000; Berlin, GER)
Ranomi Kromowidjojo NED SWI 2008—2016 50 m freestyle – 7 August 2013 - 2 August 2017 and 7 August 2017 - present: 23.24 (7 August 2013; Eindhoven, NED), 23.24 tied (12 December 2015; Indianapolis, USA), 22.93 (7 August 2017; Berlin, GER); 4×50 m freestyle relay – 7 December 2014 - 17 December 2017: 1:35.74 (7 December 2014; Doha, QAT), 1:34.24 (7 December 2014; Doha, QAT); 4×100 m freestyle relay – 9 September 2007 - 12 April 2008 and 19 December 2008 - present: 3:30.85 (9 September 2007; Eindhoven, NED), 3:28.22 (19 December 2008; Amsterdam, NED), 3:26.53 (5 December 2014; Dohar, QAT); 4×200 m freestyle relay – 9 April 2008 - 15 December 2010 and 3 December 2014 - present: 7:38.90 (9 April 2008; Manchester, GBR), 7:32.85 (3 December 2014; Doha, QAT); 4×50 m freestyle relay (mixed) – 16 December 2017 - 12 December 2018: 1:28.39 (16 December 2017; København, DEN)
Audrey Lacroix CAN SWI 2008—2016 4×100 m medley relay – 9 August 2009 - 18 December 2009: 3:49.45 (9 August 2009; Leeds, GBR)
Yevgeny Lagunov RUS SWI 2004—2012 4×50 m freestyle relay – 15 December 2013 - 6 December 2014: 1:23.36 (15 December 2013; Herning, DEN); 4×200 m freestyle relay – 16 December 2010 - 14 December 2018: 6:49.04 (16 December 2010; Dubai, UAE)
Giorgio Lamberti ITA SWI 1988—1992 200 m freestyle – 14 February 1988 - 1 April 1999: 1:43.95 (14 February 1988; Bonn, FRG), 1:43.64 (11 February 1990; Bonn, FRG); 400 m freestyle – 13 February 1988 - 4 February 1990: 3:41.74 (13 February 1988; Bonn, FRG)
Mitch Larkin AUS SWI 2012—2016 200 m backstroke – 27 November 2015 - present: 1:45.63 (27 November 2015; Sydney, AUS)
Chad le Clos RSA SWI 2010—2016 100 m butterfly – 4 December 2014 - present: 48.44 (4 December 2014; Doha, QAT), 48.08 (8 December 2016; Windsor, CAN); 200 m butterfly – 7 August 2013 - 11 December 2018: 1:49.04 (7 August 2013; Eindhoven, NED), 1:48.56 (5 November 2013; Singapore, SGP)
Le Jingyi CHN SWI 1992—1996 50 m freestyle – 3 December 1993 - 11 December 1999: 24.62 (3 December 1993; Palma de Mallorca, ESP), 24.23 (3 December 1993; Palma de Mallorca, ESP); 100 m freestyle – 2 December 1993 - 10 December 1999: 53.01 (2 December 1993; Palma de Mallorca, ESP); 4×100 m freestyle relay – 4 December 1993 - 8 April 2006: 3:35.97 (4 December 1993; Palma de Mallorca, ESP), 3:34.55 (19 April 1997; Göteborg, SWE); 4×200 m freestyle relay – 3 December 1993 - 17 April 1997: 7:52.45 (3 December 1993; Palma de Mallorca, ESP); 4×100 m medley relay – 5 December 1993 - 4 April 1999: 3:57.73 (5 December 1993; Palma de Mallorca, ESP)
Karen Legg GBR SWI 2000 4×200 m freestyle relay – 16 March 2000 - 3 April 2002: 7:49.11 (16 March 2000; Athina, GRE), 7:47.14 (10 August 2001; Norwich, GBR)
Libby Lenton-Trickett AUS SWI 2004—2012 100 m freestyle – 8 August 2005 - 28 November 2015: 51.91 (8 August 2005; Melbourne, AUS), 51.70 (9 August 2005; Melbourne, AUS) (competed as Libby Lenton), 51.01 (10 August 2009; Hobart, AUS) (competed as Libby Trickett); 200 m freestyle – 19 November 2005 - 6 December 2008: 1:53.29 (19 November 2005; Sydney, AUS) (competed as Libby Lenton); 100 m butterfly – 28 August 2006 - 13 April 2008 and 26 April 2008 - 12 August 2009: 55.95 (28 August 2006; Hobart, AUS) (competed as Libby Lenton), 55.74 (26 April 2008; Canberra, AUS) (competed as Libby Trickett); 4×100 m freestyle relay – 2 September 2007 - 9 September 2007: 3:31.66 (2 September 2007; Melbourne, AUS) (competed as Libby Lenton); 4×100 m medley relay – 9 October 2004 - 11 April 2008: 3:54.95 (9 October 2004; Indianapolis, USA), 3:51.84 (7 April 2006; Shanghai, CHN) (competed as Libby Lenton)
Amaury Leveaux FRA SWI 2004—2012 50 m freestyle – 11 December 2008 - 8 August 2009: 20.48 (11 December 2008; Rijeka, CRO); 100 m freestyle – 12 December 2008 - present: 45.12 (12 December 2008; Rijeka, CRO), 44.94 (13 December 2008; Rijeka, CRO); 50 m butterfly – 6 December 2008 - 24 October 2009: 22.29 (6 December 2008; Angers, FRA), 22.18 (14 December 2008; Rijeka, CRO)
Jason Lezak USA SWI 2000—2012 4×100 m medley relay – 7 April 2002 - 4 September 2002 and 11 October 2004 - 13 April 2008: 3:29.00 (7 April 2002; Moskva, RUS), 3:25.09 (11 October 2004; Indianapolis, USA)
Li Wei CHN SWI 2000 50 m breaststroke – 3 December 2001 - 4 January 2002: 30.56 (3 December 2001; Shanghai, CHN)
Josefin Lillhage SWE SWI 1996—2008 4×200 m freestyle relay – 1 April 1999 - 16 March 2000: 7:51.70 (1 April 1999; Hongkong, HKG)
Lin Li CHN SWI 1988—1996 100 m medley – 29 February 1992 - 22 November 1992: 1:01.61 (29 February 1992; Palma de Mallorca, ESP)
Oleh Lisohor UKR SWI 2000—2008 50 m breaststroke – 26 January 2002 - 8 November 2008: 26.20 (26 January 2002; Berlin, GER), 26.17 (21 January 2006; Berlin, GER)
Liu Jing CHN SWI 2008—2012 4×200 m freestyle relay – 15 December 2010 - 3 December 2014: 7:35.94 (15 December 2010; Dubai, UAE)
Liu Limin CHN SWI 1996—2000 100 m butterfly – 2 December 1995 - December 1995: 58.68 (2 December 1995; Rio de Janeiro, BRA); 4×100 m medley relay – 5 December 1993 - 4 April 1999: 3:57.73 (5 December 1993; Palma de Mallorca, ESP)
Liu Zige CHN SWI 2008—2012 200 m butterfly – 11 November 2009 - 3 December 2014: 2:02.50 (11 November 2009; Stockholm, SWE), 2:00.78 (15 November 2009; Berlin, GER)
Danyon Loader NZL SWI 1992—1996 400 m freestyle – 11 February 1995 - 25 September 1998: 3:40.46 (11 February 1995; Sheffield, GBR); 200 m butterfly – 6 February 1993 - 26 March 1994: 1:54.58 (6 February 1993; Paris, FRA), 1:54.50 (9 February 1993; Malmö, SWE), 1:54.21 (13 February 1993; Gelsenkirchen, GER)
Nikita Lobintsev RUS SWI 2008—2016 4×200 m freestyle relay – 16 December 2010 - 14 December 2018: 6:49.04 (16 December 2010; Dubai, UAE)
Artyom Lobuzov RUS SWI 2012 4×50 m freestyle relay (mixed) – 13 October 2013 - 18 October 2013: 1:33.01 (13 October 2013; Moskva, RUS)
Ryan Lochte USA SWI 2004—2016 100 m backstroke – 9 April 2006 - 11 November 2008: 49.99 (9 April 2006; Shanghai, CHN); 200 m backstroke – 9 April 2006 - 13 April 2008: 1:49.05 (9 April 2006; Shanghai, CHN); 100 m medley – 12 April 2008 - 14 November 2009 and 15 December 2012 - 7 December 2014: 51.25 (12 April 2008; Manchester, GBR), 51.15 (13 April 2008; Manchester, GBR), 50.71 (15 December 2012; İstanbul, TUR): 200 m medley – 7 April 2006 - 18 November 2007, 11 April 2008 - 15 November 2009, and 17 December 2010 - present: 1:53.31 (7 April 2006; Shanghai, CHN), 1:51.56 (11 April 2008; Manchester, GBR), 1:50.08 (17 December 2010; Dubai, UAE), 1:49.63 (14 December 2012; İstanbul, TUR); 400 m medley – 16 December 2010 - 20 December 2019: 3:55.50 (16 December 2010; Dubai, UAE); 4×100 m freestyle relay – 9 April 2008 - 20 December 2008: 3:08.44 (9 April 2008; Manchester, GBR)
Martín López-Zubero ESP SWI 1988—1996 200 m backstroke – 10 April 1991 - 18 November 1999: 1:52.51 (10 April 1991; Gainesville, USA)
Lu Bin CHN SWI 1992 4×100 m freestyle relay – 4 December 1993 - 19 April 1997: 3:35.97 (4 December 1993; Palma de Mallorca, ESP); 4×200 m freestyle relay – 3 December 1993 - 17 April 1997: 7:52.45 (3 December 1993; Palma de Mallorca, ESP)
Luo Xuejuan CHN SWI 2000—2004 50 m breaststroke – 3 December 2001 - 4 January 2002 and 17 January 2002 - 23 January 2002: 30.56 tied (3 December 2001; Shanghai, CHN), 30.47 (17 January 2002; Paris, FRA)
Travis Mahoney AUS SWI 2016 4×50 m freestyle relay (mixed) – 10 November 2013 - 14 December 2013: 1:29.61 (10 November 2013; Tokyo, JPN)
Grégory Mallet FRA SWI 2008—2016 4×100 m freestyle relay – 20 December 2008 - 19 December 2009: 3:04.98 (20 December 2008; Istres, FRA)
Florent Manaudou FRA SWI 2012—2016 50 m freestyle – 5 December 2014 - 20 December 2019: 20.26 (5 December 2014; Doha, QAT); 50 m backstroke – 6 December 2014 - present: 22.22 (6 December 2014; Doha, QAT); 4×50 m freestyle relay (mixed) – 21 October 2013 - 10 November 2013: 1:31.14 (21 October 2013; Doha, QAT)
Laure Manaudou FRA SWI 2004—2012 400 m freestyle – 10 December 2005 - 8 August 2009: 3:56.79 (10 December 2005; Trieste, ITA), 3:56.09 (9 December 2006; Helsinki, FIN); 800 m freestyle – 9 December 2005 - 12 October 2007: 8:11.25 (9 December 2005; Trieste, ITA); 1500 m freestyle – 20 November 2004 - 12 October 2007: 15:42.39 (20 November 2004; La Roche-sur-Yon, FRA)
Peter Mankoč SLO SWI 1996—2012 100 m medley – 15 December 2001 - 25 January 2003 and 12 December 2009 - 15 December 2012: 52.63 (15 December 2001; Antwerpen, BEL), 50.76 (12 December 2009; İstanbul, TUR)
Simone Manuel USA SWI 2016 4×100 m medley relay – 11 December 2015 - present: 3:45.20 (11 December 2015; Indianapolis, USA); 4×50 m medley relay (mixed) – 21 December 2013 - 13 December 2018: 1:37.17 (21 December 2013; Glasgow, GBR)
Angel Martino USA SWI 1992—1996 100 m backstroke – 21 November 1993 - 4 March 2001: 59.41 (21 November 1993; Stavanger, NOR), 58.50 (3 December 1993; Palma de Mallorca, ESP)
Alexandre Massura BRA SWI 1996—2000 4×100 m freestyle relay – 20 December 1998 - 16 March 2000: 3:10.45 (20 December 1998; Rio de Janeiro, BRA)
Kathryn Meaklim RSA SWI 2008—2012 400 m medley – 22 November 2009 - 18 December 2009: 4:22.80 (22 November 2009; Singapore, SGP)
Etiene Medeiros BRA SWI 2016 50 m backstroke – 7 December 2014 - 14 November 2020: 25.67 (7 December 2014; Doha, QAT)
Maud van der Meer NED SWI 2016 4×50 m freestyle relay – 7 December 2014 - 17 December 2017: 1:35.74 (7 December 2014; Doha, QAT), 1:34.24 (7 December 2014; Doha, QAT); 4×100 m freestyle relay – 5 December 2014 - present: 3:26.53 (5 December 2014; Dohar, QAT)
Katie Meili USA SWI 2016 4×50 m medley relay – 12 December 2018 - present: 1:42.38 (12 December 2018; Hangzhou, CHN); 4×100 m medley relay – 11 December 2015 - present: 3:45.20 (11 December 2015; Indianapolis, USA)
Rūta Meilutytė LTU SWI 2012—2016 100 m breaststroke – 12 October 2013 - present: 1:02.36 (12 October 2013; Moskva, RUS)
Luiz Altamir Melo BRA SWI 2014—2016 4×200 m freestyle relay – 14 December 2018 - present: 6:46.81 (14 December 2018; Hangzhou, CHN)
William Meynard FRA SWI 2016 4×100 m freestyle relay – 20 December 2008 - 19 December 2009: 3:04.98 (20 December 2008; Istres, FRA)
Cody Miller USA SWI 2016 4×50 m freestyle relay – 26 September 2013 - 15 December 2013: 1:36.81 (26 September 2013; Bloomington, USA), 4×50 m freestyle relay (mixed) – 26 September 2013 - 13 October 2013: 1:41.16 (26 September 2013; Bloomington, USA), 4×50 m medley relay (mixed) – 26 September 2013 - 28 September 2013: 1:49.87 (26 September 2013; Bloomington, USA)
Alice Mills AUS SWI 2004—2008 4×100 m freestyle relay – 2 September 2007 - 9 September 2007: 3:31.66 (2 September 2007; Melbourne, AUS)
Miloš Milošević CRO SWI 1996—2000 50 m butterfly – 12 December 1998 - 5 September 1999: 23.30 (12 December 1998; Sheffield, GBR)
Sumika Minamoto JPN SWI 1996—2000 4×100 m medley relay – 4 April 1999 - 17 March 2000: 3:57.62 (4 April 1999; Hongkong, HKG)
Ryan Mitchell AUS SWI 1996—2000 4×100 m medley relay – 23 December 1996 - 17 April 1997: 3:30.91 (23 December 1996; Melbourne, AUS)
Kenrick Monk AUS SWI 2008—2012 4×200 m freestyle relay – 31 August 2007 - 7 August 2009: 6:52.66 (31 August 2007; Melbourne, AUS)
Martina Moravcová TCH
SVK
SWI 1992—2008 100 m butterfly – 26 January 2002 - 22 November 2002: 56.55 (26 January 2002; Berlin, GER) (competed for Slovakia); 100 m medley – 12 December 1998 - 16 January 1999 and 2 April 1999: 1:00.43 (12 December 1998; Sheffield, GBR) (competed for Slovakia), 1:00.35 (2 April 1999; Hongkong, CHN) (competed for Slovakia)
Vladimir Morozov RUS SWI 2012—2016 100 m medley – 26 August 2016 - 16 November 2020: 50.60 (26 August 2016; Chartres, FRA), 50.30 (30 August 2016; Berlin, GER), 50.26 (28 September 2018; Eindhoven, NED), 50.26 tied (9 November 2018; Tokyo, JPN); 4×50 m freestyle relay – 15 December 2013 - 14 December 2018: 1:23.36 (15 December 2013; Herning, DEN), 1:22.60 (6 December 2014; Doha, QAT); 4×50 m medley relay – 17 December 2017 - present: 1:30.44 (17 December 2017; København, DEN), 4×50 m freestyle relay (mixed) – 14 December 2013 - 6 December 2014: 1:29.53 (14 December 2013; Herning, DEN)
Ed Moses USA SWI 2000 50 m breaststroke – 22 January 2002 - 26 January 2002: 26.28 (22 January 2002; Stockholm, SWE); 100 m breaststroke – 24 March 2000 - 9 November 2008: 58.05 (24 March 2000; Minneapolis, USA), 57.66 (24 March 2000; Minneapolis, USA), 57.47 (23 January 2002; Stockholm, SWE); 200 m breaststroke – 25 March 2000 - 10 August 2009: 2:06.40 (25 March 2000; Minneapolis, USA), 2:04.37 (18 January 2002; Paris, FRA), 2:03.28 (22 January 2002; Stockholm, SWE), 2:03.17 (26 January 2002; Berlin, GER), 2:02.92 (17 January 2004; Berlin, GER)
Camille Muffat FRA SWI 2008—2012 400 m freestyle – 24 November 2012 - 11 August 2013: 3:54.85 (24 November 2012; Chartres, FRA); 800 m freestyle – 16 November 2012 - 10 August 2013: 8:01.06 (16 November 2012; Angers, FRA)
Mai Nakamura JPN SWI 1996—2000 4×100 m medley relay – 4 April 1999 - 17 March 2000: 3:57.62 (4 April 1999; Hongkong, HKG)
Reiko Nakamura JPN SWI 2004—2008 100 m backstroke – 4 March 2001 - 29 November 2001: 58.45 (4 March 2001; Sagamihara, JPN); 200 m backstroke – 23 February 2008 - 11 April 2008: 2:03.24 (23 February 2008; Tokyo, JPN)
Yuko Nakanishi JPN SWI 2000—2008 200 m butterfly – 23 February 2008 - 11 November 2009: 2:03.12 (23 February 2008; Tokyo, JPN)
Rozaliya Nasretdinova RUS SWI 2014—2016 4×50 m freestyle relay (mixed) – 13 October 2013 - 18 October 2013 and 14 December 2013 - 6 December 2014: 1:33.01 (13 October 2013; Moskva, RUS), 1:29.53 (14 December 2013; Herning, DEN)
Ryk Neethling RSA SWI 1996—2008 100 m medley – 22 January 2005 - 12 April 2008: 52.11 (22 January 2005; Berlin, GER), 52.01 (26 January 2005; Moskva, RUS), 51.52 (11 February 2005; East Meadow, USA)
Nian Yun CHN SWI 1996 4×100 m freestyle relay – 19 April 1997 - 8 April 2006: 3:34.55 (19 April 1997; Göteborg, SWE); 4×200 m freestyle relay – 17 April 1997 - 1 April 1999: 7:51.92 (17 April 1997; Göteborg, SWE)
Mie Ø. Nielsen DEN SWI 2012—2016 4×50 m freestyle relay – 12 December 2013 - 7 December 2014: 1:37.04 (12 December 2013; Herning, DEN); 4×50 m medley relay – 15 December 2013 - 7 December 2016: 1:45.92 (15 December 2013; Herning, DEN), 1:44.81 (15 December 2013; Herning, DEN), 1:44.04 (5 December 2014; Doha, QAT)
Stefan Nystrand SWE SWI 2000—2012 50 m freestyle – 18 November 2007 - 11 April 2008: 20.93 (18 November 2007; Berlin, GER); 100 m freestyle – 17 November 2007 - 7 December 2008: 45.83 (17 November 2007; Berlin, GER); 4×100 m freestyle relay – 16 March 2000 - 9 April 2008: 3:09.57 (16 March 2000; Athina, GRE)
Johan Nyström SWE SWI 2000 4×100 m freestyle relay – 16 March 2000 - 9 April 2008: 3:09.57 (16 March 2000; Athina, GRE)
Susie O'Neill AUS IOC/SWI 1992—2005 200 m butterfly – 17 February 1999 - 18 January 2004: 2:05.37 (17 February 1999; Malmö, SWE), 2:04.43 (2 September 1999; Canberra, AUS), 2:04.16 (18 January 2000; Sydney, AUS)
Mattias Ohlin SWE SWI 2000—2004 4×100 m freestyle relay – 16 March 2000 - 9 April 2008: 3:09.57 (16 March 2000; Athina, GRE)
Jon Olsen USA SWI 1992—1996 4×100 m medley relay – 2 December 1993 - 23 December 1996: 3:32.57 (2 December 1993; Palma de Mallorca, ESP)
Marco Orsi ITA SWI 2012—2016 4×50 m medley relay – 12 December 2013 - 4 December 2014: 1:32.83 (12 December 2013; Herning, DEN)
Jeanette Ottesen Gray DEN SWI 2004—2016 4×50 m freestyle relay – 12 December 2013 - 7 December 2014: 1:37.04 (12 December 2013; Herning, DEN); 4×50 m medley relay – 15 December 2013 - 7 December 2016: 1:45.92 (15 December 2013; Herning, DEN), 1:44.81 (15 December 2013; Herning, DEN), 1:44.04 (5 December 2014; Doha, QAT)
Kirk Palmer AUS SWI 2008 4×200 m freestyle relay – 31 August 2007 - 7 August 2009: 6:52.66 (31 August 2007; Melbourne, AUS)
Gregorio Paltrinieri ITA SWI 2012—2016 1500 m freestyle – 4 December 2015 - present: 14:08.06 (4 December 2015; Netanya, ISR)
Denis Pankratov RUS
EUN
SWI 1992—2000 50 m butterfly – 8 February 1997 - 12 December 1998: 23.35 (8 February 1997; Paris, FRA) (competed for Russia); 100 m butterfly – 4 February 1996 - 22 January 1998: 51.94 (4 February 1996; Paris, FRA) (competed for Russia), 51.93 (5 February 1997; Imperia, ITA) (competed for Russia), 51.78 (7 February 1997; Paris, FRA) (competed for Russia); 200 m butterfly – 2 February 1997 - 28 March 1998: 1:52.64 (2 February 1997; Gelsenkirchen, GER) (competed for Russia)
Todd Pearson AUS SWI 2000—2004 4×200 m freestyle relay – 1 September 1999 - 17 March 2000: 7:01.60 (1 September 1999; Canberra, AUS)
Adam Peaty GBR SWI 2016 100 m breaststroke – 15 November 2020 - present: 55.49 (15 November 2020; Budapest, HUN)
Rikke Møller Pedersen DEN SWI 2012—2016 4×50 m medley relay – 15 December 2013 - 7 December 2016: 1:45.92 (15 December 2013; Herning, DEN), 1:44.81 (15 December 2013; Herning, DEN), 1:44.04 (5 December 2014; Doha, QAT)
Aaron Peirsol USA SWI 2000—2008 200 m backstroke – 7 April 2002 - 8 December 2005: 1:51.17 (7 April 2002; Moskva, RUS), 1:50.52 (11 October 2004; Indianapolis, USA); 4×100 m medley relay – 7 April 2002 - 4 September 2002 and 25 March 2004 - 13 April 2008: 3:29.00 (7 April 2002; Moskva, RUS), 3:25.38 (25 March 2004; East Meadow, USA), 3:25.09 (11 October 2004; Indianapolis, USA)
Federica Pellegrini ITA SWI 2004—2016 200 m freestyle – 14 December 2008 - 7 December 2014: 1:51.85 (14 December 2008; Rijeka, CRO), 1:51.17 (13 December 2009; İstanbul, TUR)
Thiago Pereira BRA SWI 2004—2016 200 m medley – 18 November 2007 - 13 December 2007: 1:53.14 (18 November 2007; Berlin, GER)
Giacomo Perez-Dortona FRA SWI 2012 4×50 m medley relay (mixed) – 20 October 2013 - 5 November 2013: 1:39.54 (20 October 2013; Doha, QAT)
Kieren Perkins AUS SWI 1992—2000 800 m freestyle – 25 July 1993 - 3 August 2001: 7:34.90 (25 July 1993; Sydney, AUS); 1500 m freestyle – 2 February 1992 - 27 September 1998: 14:32.40 (2 February 1992; Canberra, AUS), 14:26.52 (14 July 1993; Auckland, NZL)
Michael Phelps USA SWI 2000—2016 4×100 m freestyle relay – 19 December 2009 - 11 December 2018: 3:03.30 (19 December 2009; Manchester, GBR); 4×100 m medley relay – 18 December 2009 - 20 December 2009: 3:20.71 (18 December 2009; Manchester, GBR)
Karen Pickering GBR SWI 1992—2004 4×200 m freestyle relay – 16 March 2000 - 3 April 2002: 7:49.11 (16 March 2000; Athina, GRE), 7:47.14 (10 August 2001; Norwich, GBR)
Blake Pieroni USA SWI 2016 4×100 m freestyle relay – 11 December 2018 - present: 3:03.03 (11 December 2018; Hangzhou, CHN)
Annamay Pierse CAN SWI 2008 200 m breaststroke – 14 March 2009 - 15 November 2009: 2:17.50 (14 March 2009; Toronto, CAN), 2:16.83 (7 August 2009; Leeds, GBR); 4×100 m medley relay – 9 August 2009 - 18 December 2009: 3:49.45 (9 August 2009; Leeds, GBR)
Jim Piper AUS SWI 2004 4×100 m medley relay – 4 September 2002 - 25 March 2004: 3:28.12 (4 September 2002; Melbourne, AUS)
Claudia Poll CRC SWI 1996—2004 200 m freestyle – 1 December 1995 - 7 April 2002: 1:55.42 (1 December 1995; Rio de Janeiro, BRA), 1:54.17 (18 April 1997; Göteborg, SWE); 400 m freestyle – 18 April 1997 - 26 January 2003: 4:00.03 (18 April 1997; Göteborg, SWE)
Tom Ponting CAN SWI 1984—1992 4×100 m medley relay – 22 February 1992 - 2 December 1993: 3:34.86 (22 February 1992; Winnipeg, CAN)
Victoria Poon CAN SWI 2008—2012 4×100 m medley relay – 9 August 2009 - 18 December 2009: 3:49.45 (9 August 2009; Leeds, GBR)
Aleksandr Popkov RUS SWI 2016 4×50 m medley relay – 17 December 2017 - present: 1:30.44 (17 December 2017; København, DEN)
Aleksandr Popov RUS
EUN
IOC/SWI 1992—2018 50 m freestyle – 13 March 1994 - 13 December 1998: 21.50 (13 March 1994; Desenzano del Garda, ITA) (competed for Russia); 100 m freestyle – 1 January 1994 - 27 March 2004: 47.83 (1 January 1994; Hongkong, HKG) (competed for Russia), 47.82 (5 January 1994; Beijing, CHN) (competed for Russia), 47.12 (12 March 1994; Desenzano del Garda, ITA) (competed for Russia), 46.74 (19 March 1994; Gelsenkirchen, GER) (competed for Russia)
Veronika Popova RUS SWI 2012—2016 4×50 m freestyle relay (mixed) – 14 December 2013 - 6 December 2014: 1:29.53 (14 December 2013; Herning, DEN)
Sarah Price GBR SWI 2000—2004 200 m backstroke – 5 August 2001 - 27 November 2001: 2:04.44 (5 August 2001; Perth, AUS)
Kirill Prigoda RUS SWI 2016 200 m breaststroke – 13 December 2018 - present: 2:00.16 (13 December 2018; Hangzhou, CHN); 4×50 m medley relay – 17 December 2017 - present: 1:30.44 (17 December 2017; København, DEN)
Qi Hui CHN SWI 2000—2008 200 m breaststroke – 28 January 2001 - 29 November 2003: 2:19.25 (28 January 2001; Paris, FRA), 2:18.86 (2 December 2002; Shanghai, CHN)
George du Rand RSA SWI 2008 200 m backstroke – 7 November 2009 - 15 November 2009: 1:47.08 (7 November 2009; Moskva, RUS)
Shayne Reese AUS SWI 2004—2008 4×100 m freestyle relay – 2 September 2007 - 9 September 2007: 3:31.66 (2 September 2007; Melbourne, AUS)
Chris Renaud CAN SWI 1996—2000 50 m backstroke – 28 February 1997 - 11 December 1998: 24.25 (28 February 1997; St. Catharines, CAN)
Sam Riley AUS SWI 1992—1996 100 m breaststroke – 1 December 1995 - 4 September 1999: 1:05.70 (1 December 1995; Rio de Janeiro, BRA); 200 m breaststroke – 1 December 1995 - 2 April 1999: 2:20.85 (1 December 1995; Rio de Janeiro, BRA)
Markus Rogan AUT SWI 2000—2012 200 m backstroke – 8 December 2005 - 9 April 2006 and 13 April 2008 - 7 November 2009: 1:50.43 (8 December 2005; Trieste, ITA), 1:47.84 (13 April 2008; Manchester, GBR)
Phil Rogers AUS SWI 1992—2000 100 m breaststroke – 27 August 1993 - 17 February 1996: 59.07 (27 August 1993; Melbourne, AUS); 200 m breaststroke – 28 August 1993 - 28 March 1998: 2:07.80 (28 August 1993; Melbourne, AUS); 4×100 m medley relay – 17 April 1997 - 7 April 2002: 3:30.66 (17 April 1997; Göteborg, SWE), 3:29.88 (4 April 1999; Hongkong, HKG)
Jeff Rouse USA SWI 1992—1996 50 m backstroke – 12 February 1995 - 28 February 1997: 24.37 (12 February 1995; Sheffield, GBR); 100 m backstroke – 12 April 1993 - 5 February 2000: 51.43 (12 April 1993; Sheffield, GBR)
Sharon van Rouwendaal NED SWI 2012—2016 4×200 m freestyle relay – 3 December 2014 - present: 7:32.85 (3 December 2014; Doha, QAT)
Nils Rudolph GER SWI 1992 50 m freestyle – 10 February 1990 - 21 March 1992: 21.76 (10 February 1990; Bonn, FRG) (competed for East Germany); 50 m butterfly – 29 March 1991 - 13 February 1993: 24.05 (29 March 1991; Sheffield, GBR) (competed for Germany)
Thomas Rupprath GER SWI 2000—2008 50 m backstroke – 11 December 1998 - 18 November 1999 and 10 December 2004 - 26 October 2008: 24.13 (11 December 1998; Sheffield, GBR), 23.27 (10 December 2004; Wien, AUT); 100 m backstroke – 8 December 2002 - 26 March 2004: 50.58 (8 December 2002; Melbourne, AUS); 100 m butterfly – 14 December 2001 - 12 December 2003: 50.26 (14 December 2001; Antwerpen, BEL), 50.10 (27 January 2002; Berlin, GER); 200 m butterfly – 1 December 2001 - 8 December 2002: 1:51.21 (1 December 2001; Rostock, GER); 100 m medley – 25 January 2003 - 18 January 2005: 52.58 (25 January 2003; Berlin, GER)
Colin Russell CAN SWI 2008—2012 4×200 m freestyle relay – 7 August 2009 - 16 December 2010: 6:51.05 (7 August 2009; Leeds, GBR)
Luca Sacchi ITA SWI 1988—1996 400 m medley – 28 February 1992 - 9 February 1993: 4:08.77 (28 February 1992; Sheffield, GBR)
Anna Santamans FRA SWI 2010—2016 4×50 m freestyle relay (mixed) – 21 October 2013 - 10 November 2013: 1:31.14 (21 October 2013; Doha, QAT); 4×50 m medley relay (mixed) – 20 October 2013 - 5 November 2013: 1:39.54 (20 October 2013; Doha, QAT)
Nicholas Santos BRA SWI 2008—2012 50 m butterfly – 6 October 2018 - present: 21.75 (6 October 2018; Budapest, HUN); 4×50 m medley relay – 4 December 2014 - 17 December 2017: 1:30.51 (4 December 2014; Doha, QAT)
Xuxa Scherer BRA SWI 1996—2004 4×100 m freestyle relay – 7 July 1993 - 16 March 2000: 3:13.97 (7 July 1993; Santos, BRA), 3:12.11 (5 December 1993; Palma de Mallorca, ESP), 3:10.45 (20 December 1998; Rio de Janeiro, BRA)
Jess Schipper AUS SWI 2004—2012 100 m butterfly – 12 August 2009 - 11 November 2009: 55.68 (12 August 2009; Hobart, AUS); 4×100 m medley relay – 9 October 2004 - 11 April 2008: 3:54.95 (9 October 2004; Indianapolis, USA), 3:51.84 (7 April 2006; Shanghai, CHN)
Mel Schlanger AUS SWI 2008—2012 4×100 m freestyle relay – 2 September 2007 - 9 September 2007: 3:31.66 (2 September 2007; Melbourne, AUS)
Roland Schoeman RSA SWI 2000—2012 50 m freestyle – 23 March 2000, 12 August 2006 - 18 November 2007, 7 September 2008 - 11 December 2008, and 8 August 2009 - 5 December 2014: 21.31 tied (23 March 2000; Minneapolis, USA), 20.98 (12 August 2006; Hamburg, GER), 20.64 (7 September 2008; Germiston, RSA), 20.30 (8 August 2009; Pietermaritzburg, RSA); 100 m freestyle – 22 January 2005 - 17 November 2007: 46.25 tied (22 January 2005; Berlin, GER); 100 m medley – 18 January 2005 - 22 January 2005: 52.51 (18 January 2005; Stockholm, SWE)
Franck Schott FRA SWI 1988—1996 50 m backstroke – 26 March 1994 - 12 February 1995: 24.60 (26 March 1994; Pargi, FRA)
Hinkelien Schreuder NED SWI 2008—2012 100 m medley – 15 November 2009 - 8 August 2013: 57.74 (15 November 2009; Berlin, GER); 4×100 m freestyle relay – 8 April 2006 - 5 December 2014: 3:33.32 (8 April 2006; Shanghai, CHN), 3:30.85 (9 September 2007; Eindhoven, NED), 3:29.42 (12 April 2008; Manchester, GBR), 3:28.22 (19 December 2008; Amsterdam, NED)
Tripp Schwenk USA SWI 1992—1996 4×100 m medley relay – 2 December 1993 - 23 December 1996: 3:32.57 (2 December 1993; Palma de Mallorca, ESP)
Emily Seebohm AUS SWI 2008—2016 100 m medley – 10 August 2009 - 17 October 2009: 58.54 (10 August 2009; Hobart, AUS)
Daiya Seto JPN SWI 2016 200 m butterfly – 11 December 2018 - present: 1:48.24 (11 December 2018; Hangzhou, CHN); 400 m medley – 20 December 2019 - present: 3:54.81 (16 December 2010; Las Vegas, USA)
Shan Ying CHN SWI 1996 4×100 m freestyle relay – 4 December 1993 - 8 April 2006: 3:35.97 (4 December 1993; Palma de Mallorca, ESP), 3:34.55 (19 April 1997; Göteborg, SWE); 4×200 m freestyle relay – 3 December 1993 - 1 April 1999: 7:52.45 (3 December 1993; Palma de Mallorca, ESP), 7:51.92 (17 April 1997; Göteborg, SWE)
Courtney Shealy USA SWI 2000 4×100 m medley relay – 17 March 2000 - 5 April 2002: 3:57.46 (17 March 2000; Indianapolis, USA)
Shinri Shioura JPN SWI 2016 4×50 m freestyle relay (mixed) – 18 October 2013 - 21 October 2013: 1:32.52 (18 October 2013; Dubai, UAE)
Jani Sievinen FIN SWI 1992—2004 100 m medley – 21 November 1992 - 18 March 2000: 53.78 (21 November 1992; Espoo, FIN), 53.78 tied (24 January 1996; Sheffield, GBR), 53.10 (30 January 1996; Malmö, SWE); 200 m medley – 17 January 1992 - 25 March 2004: 1:57.19 (17 January 1992; Kuopio, FIN), 1:56.84 (22 January 1993; Helsinki, FIN), 1:56.62 (7 February 1993; Paris, FRA), 1:55.59 (10 February 1993; Malmö, SWE), 1:54.65 (21 April 1994; Kuopio, FIN); 400 m medley – 9 February 1993 - 1 February 1997: 4:07.10 (9 February 1993; Malmö, SWE), 4:06.03 (20 January 1996; Lappeenranta, FIN)
Anna Simcic NZL SWI 1992—1996 200 m backstroke – 1 February 1992 - 5 December 1993: 2:07.11 (1 February 1992; Paris, FRA)
Johanna Sjöberg SWE SWI 1996—2004 4×200 m freestyle relay – 1 April 1999 - 16 March 2000: 7:51.70 (1 April 1999; Hongkong, HKG); 4×100 m medley relay – 5 April 2002 - 9 October 2004: 3:55.78 (5 April 2002; Moskva, RUS)
Sarah Sjöström SWE SWI 2008—2016 50 m freestyle – 2 August 2017 - 7 August 2017: 23.10 (2 August 2017; Moskva, RUS); 100 m freestyle – 3 August 2017 - 26 October 2017: 50.77 (3 August 2017; Moskva, RUS), 50.58 (11 August 2017; Eindhoven, NED); 200 m freestyle – 7 December 2014 - present: 1:50.78 (7 December 2014; Doha, QAT), 1:50.43 (12 August 2017; Eindhoven, NED); 100 m butterfly – 7 December 2014 - present: 54.61 (7 December 2014; Doha, QAT); 4×50 m freestyle relay – 12 December 2013 - 12 December 2013 and 17 December 2017 - present: 1:37.21 (12 December 2013; Herning, DEN), 1:33.91 (17 December 2017; København, DEN)
Nikolay Skvortsov RUS SWI 2004—2012 200 m butterfly – 13 December 2008 - 10 November 2009: 1:50.60 (13 December 2008; Rijeka, CRO), 1:50.53 (15 February 2009; Saint Petersburg, RUS)
Roman Sludnov RUS SWI 2000—2012 100 m breaststroke – 17 March 2000 - 24 March 2000: 58.51 (17 March 2000; Athina, GRE); 200 m breaststroke – 19 March 2000 - 25 March 2000: 2:07.59 (19 March 2000; Athina, GRE)
Julia Smit USA SWI 2008 200 m medley – 19 December 2009 - 7 August 2013: 2:04.60 (19 December 2009; Manchester, GBR); 400 m medley – 28 November 2008 - 14 December 2008 and 18 December 2009 - 11 August 2013: 4:25.87 (28 November 2008; Toronto, CAN), 4:21.04 (18 December 2009; Manchester, GBR)
Olivia Smoliga USA SWI 2016 4×50 m medley relay – 12 December 2018 - present: 1:42.38 (12 December 2018; Hangzhou, CHN); 4×50 m medley relay (mixed) – 13 December 2018 - present: 1:36.40 (13 December 2018; Hangzhou, CHN)
Michael Söderlund SWE SWI 1980—1988 4×100 m freestyle relay – 19 March 1989 - 7 July 1993: 3:14.00 (19 March 1989; Malmö, SWE)
Rebecca Soni USA SWI 2008—2012 100 m breaststroke – 19 December 2009 - 12 October 2013: 1:02.70 (19 December 2009; Manchester, GBR); 200 m breaststroke – 18 December 2009 - present: 2:14.57 (18 December 2009; Manchester, GBR); 4×100 m medley relay – 16 December 2011 - 11 December 2015: 3:45.56 (16 December 2011; Atlanta, USA)
José Carlos Souza BRA SWI 1992 4×100 m freestyle relay – 7 July 1993 - 20 December 1998: 3:13.97 (7 July 1993; Santos, BRA), 3:12.11 (5 December 1993; Palma de Mallorca, ESP)
Christian Sprenger AUS SWI 2008—2012 200 m breaststroke – 10 August 2009 - 13 December 2009: 2:01.98 (10 August 2009; Hobart, AUS); 4×50 m medley relay (mixed) – 5 November 2013 - 21 December 2013: 1:39.08 (5 November 2013; Singapore, SGP), 1:38.02 (5 November 2013; Singapore, SGP), 1:37.84 (9 November 2013; Tokyo, JPN)
Kyle Stolk NED SWI 2014—2016 4×50 m freestyle relay (mixed) – 16 December 2017 - 12 December 2018: 1:28.39 (16 December 2017; København, DEN)
Clementine Stoney AUS SWI 2000 200 m backstroke – 4 August 2001 - 5 August 2001: 2:05.83 (4 August 2001; Perth, AUS)
Astrid Strauß GDR SWI 1988 400 m freestyle – 8 February 1987 - 18 April 1997: 4:02.05 (8 February 1987; Bonn, FRG)
Jérémy Stravius FRA SWI 2012—2016 4×50 m freestyle relay (mixed) – 21 October 2013 - 10 November 2013: 1:31.14 (21 October 2013; Doha, QAT); 4×50 m medley relay (mixed) – 20 October 2013 - 5 November 2013: 1:39.54 (20 October 2013; Doha, QAT)
Aleksandr Sukhorukov RUS SWI 2008—2016 4×200 m freestyle relay – 16 December 2010 - 14 December 2018: 6:49.04 (16 December 2010; Dubai, UAE); 4×100 m medley relay – 13 April 2008 - 9 August 2009: 3:24.29 (13 April 2008; Manchester, GBR)
Daichi Suzuki JPN SWI 1984—1988 50 m backstroke – 10 February 1990 - 26 March 1994: 24.66 (10 February 1990; Bonn, FRG)
Malin Svahnström SWE SWI 2000—2004 4×200 m freestyle relay – 1 April 1999 - 16 March 2000: 7:51.70 (1 April 1999; Hongkong, HKG)
Masami Tanaka JPN SWI 1996—2004 200 m breaststroke – 2 April 1999 - 28 January 2001: 2:20.22 (2 April 1999; Hongkong, HKG); 4×100 m medley relay – 4 April 1999 - 17 March 2000: 3:57.62 (4 April 1999; Hongkong, HKG)
Tang Jingzhi CHN SWI 2008 4×200 m freestyle relay – 3 April 2002 - 9 April 2008: 7:46.30 (3 April 2002; Moskva, RUS)
Tang Yi CHN SWI 2008—2016 4×200 m freestyle relay – 15 December 2010 - 3 December 2014: 7:35.94 (15 December 2010; Dubai, UAE)
Jake Tapp CAN SWI 2008 4×100 m medley relay – 9 August 2009 - 18 December 2009: 3:23.33 (9 August 2009; Leeds, GBR)
Mark Tewksbury CAN SWI 1988—1992 100 m backstroke – 16 March 1991 - 12 April 1993: 52.71 (16 March 1991; Bonn, GER), 52.58 (29 March 1991; Sheffield, GBR), 52.52 (20 February 1992; Winnipeg, CAN), 52.50 (22 February 1992; Winnipeg, CAN); 4×100 m medley relay – 22 February 1992 - 2 December 1993: 3:34.86 (22 February 1992; Winnipeg, CAN)
Nick Thoman USA SWI 2012 100 m backstroke – 18 December 2009 - 12 December 2015: 48.94 (18 December 2009; Manchester, GBR); 4×100 m medley relay – 18 December 2009 - 20 December 2009: 3:20.71 (18 December 2009; Manchester, GBR)
Jenny Thompson USA SWI 1992—2004 50 m butterfly – 29 November 1997 - 10 December 1999: 26.48 (29 November 1997; Toronto, CAN), 26.05 (2 December 1998; College Station, USA), 26.00 (18 November 1999; College Park, USA); 100 m butterfly – 19 April 1997 - 26 January 2002: 57.79 (19 April 1997; Göteborg, SWE), 56.90 (1 December 1998; College Station, USA), 56.80 (12 February 2000; Paris, FRA), 56.56 (18 March 2000; Athina, GRE); 100 m medley – 16 January 1999 - 23 November 2002: 1:00.41 (16 January 1999; Sydney, AUS), 59.30 (2 April 1999; Hongkong, CHN)
Ian Thorpe AUS AUS/SWI 2000—2004 200 m freestyle – 1 April 1999 - 16 November 2008: 1:43.28 (1 April 1999; Hongkong, HKG), 1:42.54 (17 January 2000; Sydney, AUS), 1:41.10 (6 February 2000; Berlin, GER); 400 m freestyle – 25 September 1998 - 2 April 1999: 3:39.82 (25 September 1998; Perth, AUS); 4×200 m freestyle relay – 7 August 2001 - 31 August 2007: 6:56.41 (7 August 2001; Perth, AUS)
Pieter Timmers BEL SWI 2012—2016 4×50 m freestyle relay – 15 December 2013 - 15 December 2013: 1:25.52 (15 December 2013; Herning, DEN)
Kira Toussaint NED SWI 2016 50 m backstroke – 14 November 2020 - present: 25.60 (14 November 2020; Budapest, HUN)
Darian Townsend RSA SWI 2004—2012 200 m medley – 15 November 2009 - 17 December 2010: 1:51.55 (15 November 2009; Berlin, GER)
Scott Tucker USA SWI 1996—2000 4×200 m freestyle relay – 17 March 2000 - 7 August 2001: 7:01.33 (17 March 2000; Athina, GRE)
Amy Van Dyken USA SWI 1996—2000 50 m butterfly – 1 February 1995 - 12 February 1995: 26.73 (1 February 1995; Espoo, FIN); 100 m butterfly – 1995 - 2 December 1995: 58.73 ( 1995; Gelsenkirchen, GER)
Steven Vandermeulen CAN SWI 1988 4×100 m medley relay – 22 February 1992 - 2 December 1993: 3:34.86 (22 February 1992; Winnipeg, CAN)
Marleen Veldhuis NED SWI 2004—2012 50 m freestyle – 17 November 2007 - 7 August 2013: 23.58 (17 November 2007; Berlin, GER), 23.25 (13 April 2008; Manchester, GBR); 4×100 m freestyle relay – 8 April 2006 - 2 September 2007 and 9 September 2007 - 5 December 2014: 3:33.32 (8 April 2006; Shanghai, CHN), 3:30.85 (9 September 2007; Eindhoven, NED), 3:29.42 (12 April 2008; Manchester, GBR), 3:28.22 (19 December 2008; Amsterdam, NED); 4×200 m freestyle relay – 9 April 2008 - 15 December 2010: 7:38.90 (9 April 2008; Manchester, GBR)
Esmee Vermeulen NED SWI 2016 4×50 m freestyle relay – 7 December 2014 - 7 December 2014: 1:35.74 (7 December 2014; Doha, QAT)
Evelyn Verrasztó HUN SWI 2004—2016 200 m medley – 6 November 2009 - 19 December 2009: 2:06.01 (6 November 2009; Moskva, RUS), 2:04.64 (10 December 2009; İstanbul, TUR)
Sandra Völker GER SWI 1992—2004 50 m backstroke – 16 February 1993 - 13 March 1994 and 13 December 1998 - 18 March 2000: 27.27 (16 February 1993; Sheffield, GBR), 27.27 (13 December 1998; Sheffield, GBR)
Dmitry Volkov URS
EUN
SWI 1988—1992 100 m breaststroke – 10 February 1990 - 27 August 1993: 59.30 (10 February 1990; Bonn, FRG) (competed for the Soviet Union)
Dana Vollmer USA SWI 2004—2016 4×100 m medley relay – 18 December 2009 - 11 December 2015: 3:47.97 (18 December 2009; Manchester, GBR), 3:45.56 (16 December 2011; Atlanta, USA)
Arkady Vyachanin RUS SWI 2004—2012 100 m backstroke – 12 December 2009 - 18 December 2009: 49.17 (12 December 2009; İstanbul, TUR), 48.97 (13 December 2009; İstanbul, TUR); 200 m backstroke – 15 November 2009 - 27 November 2015: 1:46.11 (15 November 2009; Berlin, GER)
Allison Wagner USA SWI 1996 200 m medley – 5 December 1993 - 12 April 2008: 2:07.79 (5 December 1993; Palma de Mallorca, ESP)
Neil Walker USA SWI 2000—2004 50 m backstroke – 18 November 1999 - 14 January 2000 and 13 March 2000 - 2 September 2002: 24.12 (18 November 1999; College Park, USA), 24.04 (13 March 2000; Athina, GRE), 23.42 (13 March 2000; Athina, GRE); 100 m backstroke – 19 March 2000 - 8 December 2002: 50.75 (19 March 2000; Athina, GRE); 100 m medley – 18 March 2000 - 15 December 2001: 52.79 (18 March 2000; Athina, GRE); 4×200 m freestyle relay – 17 March 2000 - 7 August 2001: 7:01.33 (17 March 2000; Athina, GRE)
Wang Luna CHN SWI 1996—2000 4×200 m freestyle relay – 17 April 1997 - 1 April 1999: 7:51.92 (17 April 1997; Göteborg, SWE)
Mark Warnecke GER
FRG
SWI 1988—2000 50 m breaststroke – 18 February 1995 - 11 December 1998 and 21 January 1998 - 22 January 2002: 27.00 (18 February 1995; Gelsenkirchen, GER) (competed for Germany), 26.97 (8 February 1997; Paris, FRA) (competed for Germany), 26.97 tied (21 January 1998; Sydney, AUS) (competed for Germany), 26.97 tied (28 November 1998; Paris, FRA) (competed for Germany), 26.70 (11 December 1998; Sheffield, GBR) (competed for Germany)
Kanako Watanabe JPN SWI 2012—2016 4×50 m freestyle relay (mixed) – 18 October 2013 - 21 October 2013: 1:32.52 (18 October 2013; Dubai, UAE)
Garrett Weber-Gale USA SWI 2008 4×100 m freestyle relay – 19 December 2009 - 11 December 2018: 3:03.30 (19 December 2009; Manchester, GBR); 4×100 m medley relay – 25 March 2004 - 11 October 2004: 3:25.38 (25 March 2004; East Meadow, USA)
Amanda Weir USA SWI 2004—2016 4×100 m medley relay – 18 December 2009 - 16 December 2011: 3:47.97 (18 December 2009; Manchester, GBR)
Abbey Weitzeil USA SWI 2016 4×50 m freestyle relay mixed – 6 December 2014 - 16 December 2017: 1:28.57 (6 December 2014; Doha, QAT)
Matt Welsh AUS SWI 2000—2004 50 m backstroke – 2 September 1999 - 18 November 1999, 14 January 2000 - 13 March 2000, and 2 September 2002 - 10 December 2004: 24.13 tied (2 September 1999; Canberra, AUS), 24.11 (14 January 2000; Hobart, AUS), 23.31 (2 September 2002; Melbourne, AUS); 200 m backstroke – 13 October 2000 - 21 January 2001: 1:51.62 (13 October 2000; Melbourne, AUS); 4×100 m medley relay – 4 April 1999 - 7 April 2002 and 4 September 2002 - 25 March 2004: 3:29.88 (4 April 1999; Hongkong, HKG), 3:28.12 (4 September 2002; Melbourne, AUS)
Tom Werner SWE SWI 1984—1992 4×100 m freestyle relay – 19 March 1989 - 7 July 1993: 3:14.00 (19 March 1989; Malmö, SWE)
Aschwin Wildeboer ESP SWI 2004—2012 100 m backstroke – 21 December 2008 - 12 December 2009: 49.20 (21 December 2008; Madrid, ESP)
Kelsi Worrell USA SWI 2016 4×50 m medley relay – 7 December 2016 - present: 1:43.27 (7 December 2016; Windsor, CAN), 1:42.38 (12 December 2018; Hangzhou, CHN); 4×100 m medley relay – 11 December 2015 - present: 3:45.20 (11 December 2015; Indianapolis, USA); 4×50 m freestyle relay (mixed) – 12 December 2018 - present: 1:27.89 (12 December 2018; Hangzhou, CHN), 4×50 m medley relay (mixed) – 13 December 2018 - present: 1:36.40 (13 December 2018; Hangzhou, CHN)
Marcel Wouda NED SWI 1992—2000 400 m medley – 1 February 1997 - 24 September 1998: 4:05.59 (1 February 1997; Gelsenkirchen, GER), 4:05.41 (8 February 1997; Paris, FRA)
Xu Jiayu CHN SWI 2012—2016 100 m backstroke – 11 November 2018 - present: 48.88 (11 November 2018; Tokyo, JPN)
Xu Yanwei CHN SWI 2004—2008 4×200 m freestyle relay – 3 April 2002 - 9 April 2008: 7:46.30 (3 April 2002; Moskva, RUS)
Sachiko Yamada JPN SWI 2000—2004 800 m freestyle – 4 February 2002 - 9 December 2005: 8:14.35 (4 February 2002; Tokyo, JPN), 8:13.35 (24 January 2004; Nishinomiya, JPN)
Yang Yu CHN SWI 2000—2008 200 m butterfly – 18 January 2004 - 13 December 2007: 2:04.04 (18 January 2004; Berlin, GER); 4×200 m freestyle relay – 3 April 2002 - 9 April 2008: 7:46.30 (3 April 2002; Moskva, RUS)
Zhao Jing CHN SWI 2008—2012 50 m backstroke – 10 November 2009 - 12 December 2009: 26.08 (10 November 2009; Stockholm, SWE), 25.82 (10 November 2009; Stockholm, SWE); 100 m medley – 11 November 2009 - 15 November 2009: 58.40 (11 November 2009; Stockholm, SWE)
Zhu Qianwei CHN SWI 2008—2012 4×200 m freestyle relay – 15 December 2010 - 3 December 2014: 7:35.94 (15 December 2010; Dubai, UAE)
Zhu Yingwen CHN SWI 2004—2008 4×200 m freestyle relay – 3 April 2002 - 9 April 2008: 7:46.30 (3 April 2002; Moskva, RUS)
Kate Ziegler USA SWI 2008—2012 800 m freestyle – 12 October 2007 - 12 December 2008: 8:09.68 (12 October 2007; Essen, GER), 8:08.00 (14 October 2007; Essen, GER); 1500 m freestyle – 12 October 2007 - 29 November 2009: 15:32.90 (12 October 2007; Essen, GER)