Women 100m Butterfly Swimming XVIII Olympic Games 1964 Tokyo, Japan - Friday, 16th October - Golden Medal: Sharon Stouder, United States 
Final   time   gap L Y 1. Sharon Stouder 1:04.7 WR   4 15 2. Ada Kok 1:05.6   +0.9s 5 17 3. Kathleen Ellis 1:06.0   +1.3s 3 17 4. Eila Pyrhonen 1:07.3   +2.6s 7 18 5. Donna De Varona 1:08.0   +3.3s 6 17 6. Heike Hustede 1:08.5   +3.8s 8 18 7. Eiko Takahashi 1:09.1   +4.4s 2 19 8. Mary Pauline Stewart 1:10.0   +5.3s 1 18 
World Record: Ada Kok, Netherlands 1:05.1  Blackpool, Great Britain 30 May 1964 Olympic Record: Carolyn Schuler, United States 1:09.5  Rome, Italy 30th August 1960 
 
 
      
 
 The three favorites were American teenagers Kathy Ellis and Sharon Stouder, and the Dutch world record holder, Ada Kok. All three made the finals easily, with Ellis and Stouder winning the semi-finals. In the final Stouder led from the start and won by over one metre from Kok, with Ellis in third. Stouder finished in 1:04.7 to better Kok's world record. It was her first gold medal of the Tokyo Olympics, but she would eventually win three golds (two in relays) and a silver in the 100 freestyle. In Budapest in August 1965, Kok re-took the world record by posting 1:04.5. Kok would continue swimming internationally, placing fourth in this event at Mexico City in 1968.
        Best 8 times advanced to Final .  
Semi 1   time   gap L Y Rk 1. Sharon Stouder 1:05.6 OR   4 15 1. 2. Ada Kok 1:05.9   +0.3s 5 17 2. 3. Eila Pyrhonen 1:07.9   +2.3s 3 18 6. 4. Marianne Humeniuk 1:09.2   +3.6s 2 17 9. 5. Ute Noack 1:09.3   +3.7s 6 21 10. 6. Glenda May Phillips 1:10.6   +5.0s 7 19 14. 7. Marta Egervari 1:10.7   +5.1s 1 21 15. 8. Kimiko Sato 1:11.2   +5.6s 8 18 16. 
 
 
Semi 2   time   gap L Y Rk 1. Kathleen Ellis 1:07.2   +1.6s 5 17 3. 2. Donna De Varona 1:07.7   +2.1s 4 17 4. 3. Eiko Takahashi 1:07.8   +2.2s 3 19 5. 4. Mary Pauline Stewart 1:08.6   +3.0s 2 18 7. 5. Heike Hustede 1:08.8   +3.2s 1 18 8. 6. Mary Anne Cotterill 1:09.4   +3.8s 6 18 11. 7. Anna Maria Cecchi 1:10.4   +4.8s 7 21 12. 8. Judy Gegan 1:10.5   +4.9s 8 19 13. 
 
Heats  - Wednesday, 14th OctoberBest 16 times advanced to Semi-Finals (1/2)>.  
Heat 5   time   gap L Y Rk 1. Glenda May Phillips 1:10.3   +3.3s 6 19 11. 1. Anna Maria Cecchi 1:10.3   +3.3s 3 21 11. 3. Heike Hustede 1:10.5   +3.5s 4 18 14. 4. Silvia Belmar Bohigas 1:12.1   +5.1s 1 19 23. 5. Maria Ballester Huguet 1:13.1   +6.1s 7 16 24. 6. Jan Turner 1:14.4   +7.4s 5 19 27. -. Judit Turoczy DNS     8 16 -. -. Hrafnhildur Guðmundsdóttir DNS     2 21 -. 
 
 
Heat 4   time   gap L Y Rk 1. Sharon Stouder 1:07.0 OR   2 15 1. 2. Ute Noack 1:09.2   +2.2s 5 21 7. 3. Valentina Yakovleva 1:11.2   +4.2s 7 17 18. 3. Helen Louise Kennedy 1:11.2   +4.2s 1 15 18. 5. Hiroko Saito 1:13.1   +6.1s 4 19 24. 6. Gillian C De Greealaw 1:14.8   +7.8s 6 14 28. 7. Margaret Harding 1:23.7   +16.7s 3 16 31. 
 
Heat 3   time   gap L Y Rk 1. Ada Kok 1:07.8   +0.8s 4 17 3. 2. Eila Pyrhonen 1:07.9   +0.9s 7 18 5. 3. Marianne Humeniuk 1:09.5   +2.5s 3 17 9. 4. Marta Egervari 1:10.3   +3.3s 6 21 11. 5. Tatyana Devyatova 1:11.1   +4.1s 1 16 17. 6. Jennifer Wood 1:11.3   +4.3s 5 16 21. 7. Ann Lallande 1:17.1   +10.1s 2 15 29. 
 
 
Heat 2   time   gap L Y Rk 1. Donna De Varona 1:07.5 OR +0.5s 6 17 2. 2. Mary Anne Cotterill 1:09.4   +2.4s 3 18 8. 3. Mary Pauline Stewart 1:09.9   +2.9s 2 18 10. 4. Kimiko Sato 1:10.6   +3.6s 4 18 15. -. Eva Erdelyi DNS     5 21 -. -. Lotten Andersson DNS     8 14 -. 
 
Heat 1   time   gap L Y Rk 1. Kathleen Ellis 1:07.8 OR +0.8s 2 17 3. 2. Eiko Takahashi 1:08.4   +1.4s 3 19 6. 3. Judy Gegan 1:10.8   +3.8s 5 19 16. 4. Adrie Lasterie 1:11.2   +4.2s 6 20 18. 5. Linda McGill 1:11.7   +4.7s 4 18 22. 6. Ursula Brunner 1:13.6   +6.6s 1 23 26. 7. Molly Chin-Say Tay 1:23.0   +16.0s 7 12 30. 
 
 
Final   time   gap L Y Rk 1. Sharon Stouder 1:04.7 WR   4 15 1. 2. Ada Kok 1:05.6   +0.9s 5 17 2. 3. Kathleen Ellis 1:06.0   +1.3s 3 17 3. 4. Eila Pyrhonen 1:07.3   +2.6s 7 18 4. 5. Donna De Varona 1:08.0   +3.3s 6 17 5. 6. Heike Hustede 1:08.5   +3.8s 8 18 6. 7. Eiko Takahashi 1:09.1   +4.4s 2 19 7. 8. Mary Pauline Stewart 1:10.0   +5.3s 1 18 8. Semis   time   gap L Y Rk 1. Sharon Stouder 1:05.6 OR   4 15 1. 2. Ada Kok 1:05.9   +0.3s 5 17 2. 1. Kathleen Ellis 1:07.2   +1.6s 5 17 3. 2. Donna De Varona 1:07.7   +2.1s 4 17 4. 3. Eiko Takahashi 1:07.8   +2.2s 3 19 5. 3. Eila Pyrhonen 1:07.9   +2.3s 3 18 6. 4. Mary Pauline Stewart 1:08.6   +3.0s 2 18 7. 5. Heike Hustede 1:08.8   +3.2s 1 18 8. 4. Marianne Humeniuk 1:09.2   +3.6s 2 17 9. 5. Ute Noack 1:09.3   +3.7s 6 21 10. 6. Mary Anne Cotterill 1:09.4   +3.8s 6 18 11. 7. Anna Maria Cecchi 1:10.4   +4.8s 7 21 12. 8. Judy Gegan 1:10.5   +4.9s 8 19 13. 6. Glenda May Phillips 1:10.6   +5.0s 7 19 14. 7. Marta Egervari 1:10.7   +5.1s 1 21 15. 8. Kimiko Sato 1:11.2   +5.6s 8 18 16. Heats   time   gap L Y Rk 1. Sharon Stouder 1:07.0 OR   2 15 1. 1. Donna De Varona 1:07.5 OR +0.5s 6 17 2. 1. Kathleen Ellis 1:07.8 OR +0.8s 2 17 3. 1. Ada Kok 1:07.8   +0.8s 4 17 3. 2. Eila Pyrhonen 1:07.9   +0.9s 7 18 5. 2. Eiko Takahashi 1:08.4   +1.4s 3 19 6. 2. Ute Noack 1:09.2   +2.2s 5 21 7. 2. Mary Anne Cotterill 1:09.4   +2.4s 3 18 8. 3. Marianne Humeniuk 1:09.5   +2.5s 3 17 9. 3. Mary Pauline Stewart 1:09.9   +2.9s 2 18 10. 4. Marta Egervari 1:10.3   +3.3s 6 21 11. 1. Glenda May Phillips 1:10.3   +3.3s 6 19 11. 1. Anna Maria Cecchi 1:10.3   +3.3s 3 21 11. 3. Heike Hustede 1:10.5   +3.5s 4 18 14. 4. Kimiko Sato 1:10.6   +3.6s 4 18 15. 3. Judy Gegan 1:10.8   +3.8s 5 19 16. 5. Tatyana Devyatova 1:11.1   +4.1s 1 16 17. 4. Adrie Lasterie 1:11.2   +4.2s 6 20 18. 3. Valentina Yakovleva 1:11.2   +4.2s 7 17 18. 3. Helen Louise Kennedy 1:11.2   +4.2s 1 15 18. 6. Jennifer Wood 1:11.3   +4.3s 5 16 21. 5. Linda McGill 1:11.7   +4.7s 4 18 22. 4. Silvia Belmar Bohigas 1:12.1   +5.1s 1 19 23. 5. Hiroko Saito 1:13.1   +6.1s 4 19 24. 5. Maria Ballester Huguet 1:13.1   +6.1s 7 16 24. 6. Ursula Brunner 1:13.6   +6.6s 1 23 26. 6. Jan Turner 1:14.4   +7.4s 5 19 27. 6. Gillian C De Greealaw 1:14.8   +7.8s 6 14 28. 7. Ann Lallande 1:17.1   +10.1s 2 15 29. 7. Molly Chin-Say Tay 1:23.0   +16.0s 7 12 30. 7. Margaret Harding 1:23.7   +16.7s 3 16 31. -. Eva Erdelyi DNS     5 21 -. -. Lotten Andersson DNS     8 14 -. -. Judit Turoczy DNS     8 16 -. -. Hrafnhildur Guðmundsdóttir DNS     2 21 -. 
 
 
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