| | Event type

200 metres Breaststroke, Men

Date	13 – 15 October 1964
Status	Olympic
Location	Kokuritsu Yoyogi Kyogijo, Shibuya, Tokyo
Participants	33 from 20 countries

The Americans thought they had the world’s best in this event in Chet Jastremski who had set the last three world records, including 2:28.2 at the US Olympic Trials in New York in late August. In the semi-finals Australian Ian O’Brien served notice when he won the first semi in 2:28.7, the second fastest time ever. Jastremski won the other semi and in the final, he took the lead through 50 metres. But he was passed on the next lap by Soviet Heorhiy Prokopenko, who led by three metres through 100. O’Brien stayed in second until late on the final lap, and caught Prokopenko only five metres from the wall, touching in 2:27.8 to better Jastremski’s world record, who came across in third. After the awards ceremony, Jastremski announced his retirement and soon entered medical school.

Pos	Swimmer	NOC	R1	SF	Final
1	Ian O'Brien	AUS	2:31.4 (1 h1)	2:28.7 (1 h2)	2:27.8 (1)	Gold
2	Georgy Prokopenko	URS	2:30.3 (2 h2)	2:29.7 (2 h2)	2:28.2 (2)	Silver
3	Chet Jastremski	USA	2:30.5 (1 h5)	2:32.1 (1 h1)	2:29.6 (3)	Bronze
4	Aleksandr T'ut'ak'aevi	URS	2:36.9 (3 h5)	2:30.5 (3 h2)	2:31.0 (4)
5	Egon Henninger	GER	2:30.1 (1 h2)	2:33.3 (3 h1)	2:31.1 (5)
6	Osamu Tsurumine	JPN	2:34.1 (2 h3)	2:33.3 (4 h1)	2:33.6 (6)
7	Wayne Anderson	USA	2:31.5 (1 h3)	2:32.6 (2 h1)	2:35.0 (7)
8	Vladimir Kosinsky	URS	2:35.6 (2 h4)	2:33.5 (4 h2)	2:38.1 (8)
9	Kenjiro Matsumoto	JPN	2:33.8 (1 h4)	2:34.3 (5 h2)	–
=10	Yoshiaki Shikishi	JPN	2:32.3 (2 h5)	2:34.5 (6 h2)	–
=10	Tom Trethewey	USA	2:33.4 (2 h1)	2:34.5 (5 h1)	–
12	Willi Messner	GER	2:36.0 (3 h4)	2:35.5 (6 h1)	–
13	Klaus Katzur	GER	2:36.7 (3 h1)	2:37.3 (7 h1)	–
14	Ferenc Lenkei	HUN	2:38.6 (3 h2)	2:37.5 (8 h1)	–
15	John Oravainen	AUS	2:38.7 (4 h5)	2:39.6 (7 h2)	–
16	Neil Nicholson	GBR	2:36.6 (4 h4)	2:39.9 (8 h2)	–
17	Peter Tonkin	AUS	2:39.3 (4 h2)	–	–
18	Nazario Padrón	ESP	2:40.5 (5 h5)	–	–
19	Gershon Shefa	ISR	2:40.6 (5 h4)	–	–
20	Hemmie Vriens	NED	2:40.8 (5 h2)	–	–
21	Cesare Caramelli	ITA	2:40.9 (6 h4)	–	–
22	Rolando Landrito	PHI	2:41.9 (3 h3)	–	–
23	Gian Corrado Gross	ITA	2:42.8 (4 h3)	–	–
24	Amman Jalmaani	PHI	2:44.7 (6 h2)	–	–
25	Farid Zablith Filho	BRA	2:45.2 (4 h1)	–	–
26	Rudolf Brack	SUI	2:46.0 (6 h5)	–	–
27	Cheah Tong Kim	MAS	2:46.2 (7 h5)	–	–
28	Wieger Mensonides	NED	2:47.4 (5 h1)	–	–
29	Jin Jang-Rim	KOR	2:48.6 (5 h3)	–	–
30	Charles Fox	ZAM	2:49.1 (8 h5)	–	–
31	Miguel Ángel Navarro	ARG	2:49.7 (7 h4)	–	–
32	Huỳnh Văn Hải	VNM	2:51.6 (6 h1)	–	–
33	Elliot Chenaux	PUR	2:52.5 (7 h2)	–	–
DNS	Costantino Dennerlein	ITA	– (DNS h1)	–	–
DNS	Virayuth Klumbanjong	THA	– (DNS h3)	–	–

Round One (13 October 1964 — 19:10)

Fastest sixteen advanced to the semi-finals.

Heat One

Pos	Lane	Swimmer	NOC	100 m	Time
1	1	Ian O'Brien	AUS	1:13.7 (2) 1:17.7 (1)	2:31.4	QOR
2	4	Tom Trethewey	USA	1:13.0 (1) 1:20.4 (2)	2:33.4	Q
3	5	Klaus Katzur	GER	1:14.5 (3) 1:22.2 (3)	2:36.7	Q
4	6	Farid Zablith Filho	BRA	1:20.0 (6) 1:25.2 (4)	2:45.2
5	7	Wieger Mensonides	NED	1:19.8 (=4) 1:27.6 (5)	2:47.4
6	3	Huỳnh Văn Hải	VNM	1:19.8 (=4) 1:31.8 (6)	2:51.6
DNS	2	Costantino Dennerlein	ITA	– (–) –	–

Heat Two

Pos	Lane	Swimmer	NOC	100 m	Time
1	1	Egon Henninger	GER	1:10.8 (1) 1:19.3 (2)	2:30.1	QOR
2	3	Georgy Prokopenko	URS	1:11.6 (2) 1:18.7 (1)	2:30.3	Q
3	4	Ferenc Lenkei	HUN	1:14.7 (3) 1:23.9 (3)	2:38.6	Q
4	5	Peter Tonkin	AUS	1:15.2 (4) 1:24.1 (4)	2:39.3
5	7	Hemmie Vriens	NED	1:16.2 (5) 1:24.6 (5)	2:40.8
6	2	Amman Jalmaani	PHI	1:17.4 (6) 1:27.3 (6)	2:44.7
7	6	Elliot Chenaux	PUR	1:20.5 (7) 1:32.0 (7)	2:52.5

Heat Three

Pos	Lane	Swimmer	NOC	100 m	Time
1	5	Wayne Anderson	USA	1:12.1 (1) 1:19.4 (1)	2:31.5	Q
2	6	Osamu Tsurumine	JPN	1:14.5 (2) 1:19.6 (2)	2:34.1	Q
3	7	Rolando Landrito	PHI	1:16.5 (3) 1:25.4 (3)	2:41.9
4	4	Gian Corrado Gross	ITA	1:16.6 (4) 1:26.2 (4)	2:42.8
5	3	Jin Jang-Rim	KOR	1:17.0 (5) 1:31.6 (5)	2:48.6
DNS	1	Virayuth Klumbanjong	THA	– (–) –	–

Heat Four

Pos	Lane	Swimmer	NOC	100 m	Time
1	6	Kenjiro Matsumoto	JPN	1:13.4 (1) 1:20.4 (1)	2:33.8	Q
2	3	Vladimir Kosinsky	URS	1:14.5 (2) 1:21.1 (4)	2:35.6	Q
3	5	Willi Messner	GER	1:15.2 (3) 1:20.8 (2)	2:36.0	Q
4	4	Neil Nicholson	GBR	1:15.6 (4) 1:21.0 (3)	2:36.6	Q
5	2	Gershon Shefa	ISR	1:16.7 (5) 1:23.9 (6)	2:40.6
6	1	Cesare Caramelli	ITA	1:17.3 (6) 1:23.6 (5)	2:40.9
7	7	Miguel Ángel Navarro	ARG	1:17.4 (7) 1:32.3 (7)	2:49.7

Heat Five

Pos	Lane	Swimmer	NOC	100 m	Time
1	–	Chet Jastremski	USA	1:12.1 (1) 1:18.4 (1)	2:30.5	Q
2	–	Yoshiaki Shikishi	JPN	1:12.8 (2) 1:19.5 (2)	2:32.3	Q
3	–	Aleksandr T'ut'ak'aevi	URS	1:15.1 (4) 1:21.8 (3)	2:36.9	Q
4	–	John Oravainen	AUS	1:14.9 (3) 1:23.8 (4)	2:38.7	Q
5	–	Nazario Padrón	ESP	1:15.7 (5) 1:24.8 (5)	2:40.5
6	–	Rudolf Brack	SUI	1:17.5 (7) 1:28.5 (6)	2:46.0
7	–	Cheah Tong Kim	MAS	1:17.4 (6) 1:28.8 (7)	2:46.2
8	–	Charles Fox	ZAM	1:20.1 (8) 1:29.0 (8)	2:49.1

Semi-Finals (14 October 1964 — 14:05)

Fastest eight advanced to the final.

Heat One

Pos	Lane	Swimmer	NOC	100 m	Time
1	5	Chet Jastremski	USA	1:12.5 (2) 1:19.6 (2)	2:32.1	Q
2	3	Wayne Anderson	USA	1:13.6 (7) 1:19.0 (1)	2:32.6	Q
3	4	Egon Henninger	GER	1:12.1 (1) 1:21.2 (5)	2:33.3	Q
4	2	Osamu Tsurumine	JPN	1:13.0 (4) 1:20.3 (3)	2:33.3	Q
5	6	Tom Trethewey	USA	1:12.7 (3) 1:21.8 (6)	2:34.5
6	7	Willi Messner	GER	1:15.0 (8) 1:20.5 (4)	2:35.5
7	1	Klaus Katzur	GER	1:13.4 (6) 1:23.9 (7)	2:37.3
8	8	Ferenc Lenkei	HUN	1:13.1 (5) 1:24.4 (8)	2:37.5

Heat Two

Pos	Lane	Swimmer	NOC	100 m	Time
1	5	Ian O'Brien	AUS	1:13.3 (4) 1:15.4 (1)	2:28.7	QOR
2	4	Georgy Prokopenko	URS	1:10.9 (1) 1:18.8 (2)	2:29.7	Q
3	1	Aleksandr T'ut'ak'aevi	URS	1:11.1 (2) 1:19.4 (=3)	2:30.5	Q
4	2	Vladimir Kosinsky	URS	1:14.1 (6) 1:19.4 (=3)	2:33.5	Q
5	6	Kenjiro Matsumoto	JPN	1:13.8 (5) 1:20.5 (5)	2:34.3
6	3	Yoshiaki Shikishi	JPN	1:13.2 (3) 1:21.3 (6)	2:34.5
7	8	John Oravainen	AUS	1:15.9 (7) 1:23.7 (7)	2:39.6
8	7	Neil Nicholson	GBR	1:16.0 (8) 1:23.9 (8)	2:39.9

Final (15 October 1964 — 20:55)

Pos	Lane	Swimmer	NOC	100 m	Time
1	4	Ian O'Brien	AUS	1:10.5 (3) 1:17.3 (1)	2:27.8	WR
2	5	Georgy Prokopenko	URS	1:09.2 (1) 1:19.0 (2)	2:28.2
3	6	Chet Jastremski	USA	1:10.2 (2) 1:19.4 (3)	2:29.6
4	3	Aleksandr T'ut'ak'aevi	URS	1:11.4 (5) 1:19.6 (4)	2:31.0
5	7	Egon Henninger	GER	1:10.8 (4) 1:20.3 (6)	2:31.1
6	1	Osamu Tsurumine	JPN	1:13.9 (8) 1:19.7 (5)	2:33.6
7	2	Wayne Anderson	USA	1:12.5 (6) 1:22.5 (7)	2:35.0
8	8	Vladimir Kosinsky	URS	1:12.7 (7) 1:25.4 (8)	2:38.1