| | Event type

50 metres Freestyle, Women

Date	3 – 4 August 2012
Status	Olympic
Location	London Aquatics Centre, Olympic Park, Stratford, London
Participants	73 from 65 countries

Sweden’s Therese Alshammar had won this event at the 2011 World Championships, and the defending gold medalist, German Britta Steffen, was back, but they were expected to be challenged by Dutchwoman Ranomi Kromowidjojo, who had already won the 100 freestyle in London. But it was Kromo who won relatively easily, taking the lead from the start and stopping the clock in 24.05 for the gold medal. Behind her teammate Marleen Veldhuis appeared ready to give the Netherlands a 1-2 finish but was pipped at the finish by Belarussian Aleksandra Gerasimenya for the silver. Steffen just missed the medals in fourth place, nipping out Alshammar in fifth.

Kromowidjojo became the fourth woman to sweep the two sprint freestyles since the 50 was introduced in 1988, joining East German Kristin Otto from 1988, her countrywoman Inge de Bruijn in 2000, and Steffan at Beijing. Kromowidjojo’s unusual name reflects her mixed Dutch-Javanese-Surinamese ethnicity.

Pos	Competitor	NOC	R1	SF	Final
1	Ranomi Kromowidjojo	NED	24.51 (1 h10)	24.07 (1 h2)	24.05 (1)	Gold
2	Aliaksandra Herasimenia	BLR	24.76 (3 h9)	24.45 (2 h2)	24.28 (2)	Silver
3	Marleen Veldhuis	NED	24.57 (2 h10)	24.50 (1 h1)	24.39 (3)	Bronze
4	Britta Steffen	GER	24.70 (2 h9)	24.57 (2 h1)	24.46 (4)
5	Fran Halsall	GBR	24.61 (1 h9)	24.63 (3 h2)	24.47 (5)
6	Therèse Alshammar	SWE	24.77 (1 h8)	24.71 (5 h1)	24.61 (6)
7	Jessica Hardy	USA	24.99 (5 h10)	24.68 (4 h1)	24.62 (7)
8	Arianna Vanderpool-Wallace	BAH	24.85 (=3 h10)	24.64 (3 h1)	24.69 (8)
9	Amy Smith	GBR	25.28 (7 h9)	24.87 (6 h1)	–
10	Bronte Campbell	AUS	24.87 (2 h8)	24.94 (=4 h2)	–
11	Anna Santamans	FRA	25.23 (6 h9)	24.94 (=4 h2)	–
12	Jeanette Ottesen Gray	DEN	24.85 (=3 h10)	24.99 (6 h2)	–
13	Cate Campbell	AUS	24.94 (3 h8)	25.01 (7 h1)	–
14	Sarah Sjöström	SWE	24.94 (4 h9)	25.08 (7 h2)	–
15	Victoria Poon	CAN	25.15 (5 h9)	25.17 (8 h1)	–
16	Nora Drakou	GRE	25.13 (4 h8)	25.28 (8 h2)	–
=17	Kara Lynn Joyce	USA	25.28 (5 h8)	–	–
=17	Sarah Bateman	ISL	25.28 (1 h7)	–	–
19	Triin Aljand	EST	25.33 (6 h10)	–	–
20	Sviatlana Khokhlava	BLR	25.36 (7 h10)	–	–
21	Neri Niagkouara	GRE	25.40 (6 h8)	–	–
22	Graciele Herrmann	BRA	25.44 (7 h8)	–	–
23	Hayley Palmer	NZL	25.47 (2 h7)	–	–
=24	Pernille Blume	DEN	25.54 (8 h9)	–	–
=24	Zhu Qianwei	CHN	25.54 (1 h6)	–	–
=26	Hanna-Maria Seppälä	FIN	25.55 (2 h6)	–	–
=26	Rūta Meilutytė	LTU	25.55 (1 h5)	–	–
28	Arlene Semeco	VEN	25.56 (3 h7)	–	–
29	Vanessa García	PUR	25.58 (4 h7)	–	–
30	Anna Dowgiert	POL	25.59 (5 h7)	–	–
31	Jolien Sysmans	BEL	25.60 (6 h7)	–	–
32	Erika Ferraioli	ITA	25.69 (3 h6)	–	–
33	Dar'ia Stepaniuk	UKR	25.70 (8 h10)	–	–
34	Burcu Dolunay	TUR	25.72 (7 h7)	–	–
35	Yayoi Matsumoto	JPN	25.73 (8 h8)	–	–
36	Trudi Maree	RSA	25.78 (8 h7)	–	–
37	Alia Atkinson	JAM	25.98 (4 h6)	–	–
38	Miroslava Syllabová	SVK	26.07 (5 h6)	–	–
39	Gabriela Ņikitina	LAT	26.26 (2 h5)	–	–
40	Chinyere Pigot	SUR	26.30 (3 h5)	–	–
41	Farida Osman	EGY	26.34 (6 h6)	–	–
42	Miroslava Najdanovski	SRB	26.46 (7 h6)	–	–
43	Nicola Muscat	MLT	27.22 (4 h5)	–	–
44	Jessica Vieira	MOZ	27.39 (5 h5)	–	–
45	Talita Baqlah	JOR	27.45 (6 h5)	–	–
46	Joyce Tafatatha	MAW	27.74 (1 h4)	–	–
47	Judith Meauri	PNG	27.84 (2 h4)	–	–
48	Faye Sultan	KUW	27.92 (7 h5)	–	–
49	Annie Hepler	MHL	28.06 (3 h4)	–	–
50	Keesha Keane	PLW	28.25 (4 h4)	–	–
51	Sabine Hazboun	PLE	28.28 (5 h4)	–	–
52	Jamila Lunkuse	UGA	28.44 (8 h5)	–	–
53	Antoinette Guedia	CMR	29.28 (6 h4)	–	–
54	Celeste Brown	COK	29.36 (7 h4)	–	–
55	Karin Clashing O'Reilly	ANT	30.01 (1 h3)	–	–
56	Debra Daniel	FSM	30.32 (1 h2)	–	–
57	Hem Thon Vitiny	CAM	30.44 (2 h3)	–	–
58	Alphonsine Agahozo	RWA	30.72 (3 h3)	–	–
59	Nada Arkaji	QAT	30.89 (4 h3)	–	–
60	Katerina Izmaylova	TJK	31.27 (5 h3)	–	–
61	Mariana Henriques	ANG	31.36 (8 h4)	–	–
62	Fatoumata Samassékou	MLI	31.88 (6 h3)	–	–
63	Angelika Ouédraogo	BUR	32.19 (2 h2)	–	–
64	Aminath Shajan	MDV	32.23 (7 h3)	–	–
65	Yanet Gebremedhin	ETH	32.41 (8 h3)	–	–
66	Assita Touré	CIV	33.09 (3 h2)	–	–
67	Elsie Uwamahoro	BDI	33.14 (4 h2)	–	–
68	Sara Al-Flaij	BRN	33.81 (5 h2)	–	–
69	Aminata Yacoub	CGO	34.64 (6 h2)	–	–
70	Mhasin Al-Noor	SUD	35.07 (7 h2)	–	–
71	Nafissatou Adamou	NIG	37.29 (1 h1)	–	–
72	Adzo Kpossi	TOG	37.55 (2 h1)	–	–
73	Masempe Theko	LES	42.35 (3 h1)	–	–
DNS	Eszter Dara	HUN	– (DNS h6)	–	–

Round One

Date	3 August 2012 — 10:00
Format	Fastest 16 swimmers advanced to semi-finals

Pos	Lane	Competitor	NOC	Time
1	–	Ranomi Kromowidjojo	NED	24.51	Q
2	–	Marleen Veldhuis	NED	24.57	Q
3	–	Fran Halsall	GBR	24.61	Q
4	–	Britta Steffen	GER	24.70	Q
5	–	Aliaksandra Herasimenia	BLR	24.76	Q
6	–	Therèse Alshammar	SWE	24.77	Q
7	–	Jeanette Ottesen Gray	DEN	24.85	Q
8	–	Arianna Vanderpool-Wallace	BAH	24.85	Q
9	–	Bronte Campbell	AUS	24.87	Q
=10	–	Cate Campbell	AUS	24.94	Q
=10	–	Sarah Sjöström	SWE	24.94	Q
12	–	Jessica Hardy	USA	24.99	Q
13	–	Nora Drakou	GRE	25.13	Q
14	–	Victoria Poon	CAN	25.15	Q
15	–	Anna Santamans	FRA	25.23	Q
=16	–	Sarah Bateman	ISL	25.28
=16	–	Kara Lynn Joyce	USA	25.28
=16	–	Amy Smith	GBR	25.28	Q
19	–	Triin Aljand	EST	25.33
20	–	Sviatlana Khokhlava	BLR	25.36
21	–	Neri Niagkouara	GRE	25.40
22	–	Graciele Herrmann	BRA	25.44
23	–	Hayley Palmer	NZL	25.47
=24	–	Zhu Qianwei	CHN	25.54
=24	–	Pernille Blume	DEN	25.54
=26	–	Rūta Meilutytė	LTU	25.55
=26	–	Hanna-Maria Seppälä	FIN	25.55
28	–	Arlene Semeco	VEN	25.56
29	–	Vanessa García	PUR	25.58
30	–	Anna Dowgiert	POL	25.59
31	–	Jolien Sysmans	BEL	25.60
32	–	Erika Ferraioli	ITA	25.69
33	–	Dar'ia Stepaniuk	UKR	25.70
34	–	Burcu Dolunay	TUR	25.72
35	–	Yayoi Matsumoto	JPN	25.73
36	–	Trudi Maree	RSA	25.78
37	–	Alia Atkinson	JAM	25.98
38	–	Miroslava Syllabová	SVK	26.07
39	–	Gabriela Ņikitina	LAT	26.26
40	–	Chinyere Pigot	SUR	26.30
41	–	Farida Osman	EGY	26.34
42	–	Miroslava Najdanovski	SRB	26.46
43	–	Nicola Muscat	MLT	27.22
44	–	Jessica Vieira	MOZ	27.39
45	–	Talita Baqlah	JOR	27.45
46	–	Joyce Tafatatha	MAW	27.74
47	–	Judith Meauri	PNG	27.84
48	–	Faye Sultan	KUW	27.92
49	–	Annie Hepler	MHL	28.06
50	–	Keesha Keane	PLW	28.25
51	–	Sabine Hazboun	PLE	28.28
52	–	Jamila Lunkuse	UGA	28.44
53	–	Antoinette Guedia	CMR	29.28
54	–	Celeste Brown	COK	29.36
55	–	Karin Clashing O'Reilly	ANT	30.01
56	–	Debra Daniel	FSM	30.32
57	–	Hem Thon Vitiny	CAM	30.44
58	–	Alphonsine Agahozo	RWA	30.72
59	–	Nada Arkaji	QAT	30.89
60	–	Katerina Izmaylova	TJK	31.27
61	–	Mariana Henriques	ANG	31.36
62	–	Fatoumata Samassékou	MLI	31.88
63	–	Angelika Ouédraogo	BUR	32.19
64	–	Aminath Shajan	MDV	32.23
65	–	Yanet Gebremedhin	ETH	32.41
66	–	Assita Touré	CIV	33.09
67	–	Elsie Uwamahoro	BDI	33.14
68	–	Sara Al-Flaij	BRN	33.81
69	–	Aminata Yacoub	CGO	34.64
70	–	Mhasin Al-Noor	SUD	35.07
71	–	Nafissatou Adamou	NIG	37.29
72	–	Adzo Kpossi	TOG	37.55
73	–	Masempe Theko	LES	42.35
DNS	–	Eszter Dara	HUN	–

Heat #1

Time	10:00

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Nafissatou Adamou	NIG	37.29	0.92
2	–	Adzo Kpossi	TOG	37.55	0.80
3	–	Masempe Theko	LES	42.35	1.07

Heat #2

Time	10:03

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Debra Daniel	FSM	30.32	0.74
2	–	Angelika Ouédraogo	BUR	32.19	0.81
3	–	Assita Touré	CIV	33.09	0.97
4	–	Elsie Uwamahoro	BDI	33.14	0.78
5	–	Sara Al-Flaij	BRN	33.81	0.79
6	–	Aminata Yacoub	CGO	34.64	0.82
7	–	Mhasin Al-Noor	SUD	35.07	0.99

Heat #3

Time	10:05

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Karin Clashing O'Reilly	ANT	30.01	0.79
2	–	Hem Thon Vitiny	CAM	30.44	0.78
3	–	Alphonsine Agahozo	RWA	30.72	0.84
4	–	Nada Arkaji	QAT	30.89	0.77
5	–	Katerina Izmaylova	TJK	31.27	0.77
6	–	Fatoumata Samassékou	MLI	31.88	0.89
7	–	Aminath Shajan	MDV	32.23	0.78
8	–	Yanet Gebremedhin	ETH	32.41	0.88

Heat #4

Time	10:07

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Joyce Tafatatha	MAW	27.74	0.71
2	–	Judith Meauri	PNG	27.84	0.78
3	–	Annie Hepler	MHL	28.06	0.66
4	–	Keesha Keane	PLW	28.25	0.66
5	–	Sabine Hazboun	PLE	28.28	0.71
6	–	Antoinette Guedia	CMR	29.28	0.81
7	–	Celeste Brown	COK	29.36	0.75
8	–	Mariana Henriques	ANG	31.36	0.67

Heat #5

Time	10:09

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Rūta Meilutytė	LTU	25.55	0.60
2	–	Gabriela Ņikitina	LAT	26.26	0.76
3	–	Chinyere Pigot	SUR	26.30	0.74
4	–	Nicola Muscat	MLT	27.22	0.68
5	–	Jessica Vieira	MOZ	27.39	0.67
6	–	Talita Baqlah	JOR	27.45	0.77
7	–	Faye Sultan	KUW	27.92	0.73
8	–	Jamila Lunkuse	UGA	28.44	0.70

Heat #6

Time	10:12

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Zhu Qianwei	CHN	25.54	0.67
2	–	Hanna-Maria Seppälä	FIN	25.55	0.72
3	–	Erika Ferraioli	ITA	25.69	0.69
4	–	Alia Atkinson	JAM	25.98	0.66
5	–	Miroslava Syllabová	SVK	26.07	0.77
6	–	Farida Osman	EGY	26.34	0.72
7	–	Miroslava Najdanovski	SRB	26.46	0.77
DNS	–	Eszter Dara	HUN	–	–

Heat #7

Time	10:14

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Sarah Bateman	ISL	25.28	0.67
2	–	Hayley Palmer	NZL	25.47	0.65
3	–	Arlene Semeco	VEN	25.56	0.69
4	–	Vanessa García	PUR	25.58	0.64
5	–	Anna Dowgiert	POL	25.59	0.67
6	–	Jolien Sysmans	BEL	25.60	0.73
7	–	Burcu Dolunay	TUR	25.72	0.67
8	–	Trudi Maree	RSA	25.78	0.64

Heat #8

Time	10:16

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Therèse Alshammar	SWE	24.77	0.66	Q
2	–	Bronte Campbell	AUS	24.87	0.77	Q
3	–	Cate Campbell	AUS	24.94	0.83	Q
4	–	Nora Drakou	GRE	25.13	0.63	Q
5	–	Kara Lynn Joyce	USA	25.28	0.70
6	–	Neri Niagkouara	GRE	25.40	0.70
7	–	Graciele Herrmann	BRA	25.44	0.69
8	–	Yayoi Matsumoto	JPN	25.73	0.69

Heat #9

Time	10:18

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Fran Halsall	GBR	24.61	0.71	Q
2	–	Britta Steffen	GER	24.70	0.75	Q
3	–	Aliaksandra Herasimenia	BLR	24.76	0.75	Q
4	–	Sarah Sjöström	SWE	24.94	0.76	Q
5	–	Victoria Poon	CAN	25.15	0.77	Q
6	–	Anna Santamans	FRA	25.23	0.70	Q
7	–	Amy Smith	GBR	25.28	0.73	Q
8	–	Pernille Blume	DEN	25.54	0.86

Heat #10

Time	10:20

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Ranomi Kromowidjojo	NED	24.51	0.72	Q
2	–	Marleen Veldhuis	NED	24.57	0.78	Q
=3	–	Jeanette Ottesen Gray	DEN	24.85	0.71	Q
=3	–	Arianna Vanderpool-Wallace	BAH	24.85	0.65	Q
5	–	Jessica Hardy	USA	24.99	0.72	Q
6	–	Triin Aljand	EST	25.33	0.70
7	–	Sviatlana Khokhlava	BLR	25.36	0.74
8	–	Dar'ia Stepaniuk	UKR	25.70	0.76

Swim-Off 16-17

Time	12:05

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Amy Smith	GBR	24.82	0.65	Q
2	–	Kara Lynn Joyce	USA	25.16	0.72
3	–	Sarah Bateman	ISL	26.03	0.68

Semi-Finals

Date	3 August 2012 — 20:27
Format	Fastest eight swimmers advanced to final

Pos	Lane	Competitor	NOC	Time
1	–	Ranomi Kromowidjojo	NED	24.07	Q
2	–	Aliaksandra Herasimenia	BLR	24.45	Q
3	–	Marleen Veldhuis	NED	24.50	Q
4	–	Britta Steffen	GER	24.57	Q
5	–	Fran Halsall	GBR	24.63	Q
6	–	Arianna Vanderpool-Wallace	BAH	24.64	Q
7	–	Jessica Hardy	USA	24.68	Q
8	–	Therèse Alshammar	SWE	24.71	Q
9	–	Amy Smith	GBR	24.87
=10	–	Bronte Campbell	AUS	24.94
=10	–	Anna Santamans	FRA	24.94
12	–	Jeanette Ottesen Gray	DEN	24.99
13	–	Cate Campbell	AUS	25.01
14	–	Sarah Sjöström	SWE	25.08
15	–	Victoria Poon	CAN	25.17
16	–	Nora Drakou	GRE	25.28

Heat #1

Time	20:27

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Marleen Veldhuis	NED	24.50	0.73	Q
2	–	Britta Steffen	GER	24.57	0.70	Q
3	–	Arianna Vanderpool-Wallace	BAH	24.64	0.65	Q
4	–	Jessica Hardy	USA	24.68	0.72	Q
5	–	Therèse Alshammar	SWE	24.71	0.67	Q
6	–	Amy Smith	GBR	24.87	0.65
7	–	Cate Campbell	AUS	25.01	0.80
8	–	Victoria Poon	CAN	25.17	0.76

Heat #2

Time	20:31

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Ranomi Kromowidjojo	NED	24.07	0.71	Q
2	–	Aliaksandra Herasimenia	BLR	24.45	0.73	Q
3	–	Fran Halsall	GBR	24.63	0.69	Q
=4	–	Bronte Campbell	AUS	24.94	0.76
=4	–	Anna Santamans	FRA	24.94	0.59
6	–	Jeanette Ottesen Gray	DEN	24.99	0.68
7	–	Sarah Sjöström	SWE	25.08	0.72
8	–	Nora Drakou	GRE	25.28	0.62

Final Round

Date	4 August 2012 — 19:30

Pos	Lane	Competitor	NOC	Time	Reaction Time
1	–	Ranomi Kromowidjojo	NED	24.05	0.72	OR
2	–	Aliaksandra Herasimenia	BLR	24.28	0.74
3	–	Marleen Veldhuis	NED	24.39	0.74
4	–	Britta Steffen	GER	24.46	0.71
5	–	Fran Halsall	GBR	24.47	0.67
6	–	Therèse Alshammar	SWE	24.61	0.68
7	–	Jessica Hardy	USA	24.62	0.72
8	–	Arianna Vanderpool-Wallace	BAH	24.69	0.71