Swimming at the 1964 Summer Olympics – Women's 400 metre freestyle

The women's 400 metre freestyle event at the 1964 Olympic Games took place between 17 and 18 October. This swimming event used freestyle swimming, which means that the method of the stroke is not regulated (unlike backstroke, breaststroke, and butterfly events). Nearly all swimmers use the front crawl or a variant of that stroke. Because an Olympic-size swimming pool is 50 metres long, this race consisted of eight lengths of the pool.

Medalists

Gold	Ginny Duenkel  United States
Silver	Marilyn Ramenofsky  United States
Bronze	Terri Stickles  United States

Results

Heats

Heat 1

Rank	Athlete	Country	Time	Note
1	Ginny Duenkel	United States	4:48.6
2	Martina Grunert	Germany	4:57.7
3	Ineke Tigelaar	Netherlands	5:01.8
4	Barbara Hounsell	Canada	5:04.9
5	Tazuko Kikutani	Japan	5:06.3

Heat 2

Rank	Athlete	Country	Time	Note
1	Kim Herford	Australia	4:49.8
2	Ann-Charlotte Lilja	Sweden	4:52.3
3	Patty Thompson	Canada	5:06.7
4	Pauline Sillett	Great Britain	5:12.2
5	Bep Weeteling	Netherlands	5:13.0

Heat 3

Rank	Athlete	Country	Time	Note
1	Liz Long	Great Britain	4:54.5
2	Daniela Beneck	Italy	4:56.2
3	Elisabeth Ljunggren-Morris	Sweden	4:57.0
4	Jutta Wanke	Germany	5:01.7
5	Ann Lallande	Puerto Rico	5:04.3
6	Rita Pulido	Spain	5:06.2
7	Marilyn Sidelsky	Zimbabwe	5:08.9

Heat 4

Rank	Athlete	Country	Time	Note
1	Marilyn Ramenofsky	United States	4:47.7
2	Dawn Fraser	Australia	4:52.2
3	Jane Hughes	Canada	4:54.8
4	Nataliya Bystrova	Soviet Union	5:05.0
5	María Luisa Souza	Mexico	5:05.2
6	Majvor Welander	Sweden	5:07.7
7	Olga Belmar	Mexico	5:14.0
8	Jovina Tseng	Malaysia	5:46.0

Heat 5

Rank	Athlete	Country	Time	Note
1	Terri Lee Stickles	United States	4:49.3
2	Nanette Duncan	Australia	4:55.2
3	Kazue Hayakawa	Japan	4:56.5
4	Heidi Pechstein	Germany	5:01.4
5	Nataliya Mikhaylova	Soviet Union	5:08.0
6	Im Geum-ja	South Korea	5:38.7

Final

Rank	Athlete	Country	Time	Notes
	Ginny Duenkel	United States	4:43.3	OR
	Marilyn Ramenofsky	United States	4:44.6
	Terri Stickles	United States	4:47.2
4	Dawn Fraser	Australia	4:47.6
5	Jane Hughes	Canada	4:50.9
6	Liz Long	Great Britain	4:52.0
7	Kim Herford	Australia	4:52.9
8	Ann-Charlotte Lilja	Sweden	4:53.0

Key: OR = Olympic record