| Women 100m Butterfly Swimming Olympic Games 1980 Moskva, Soviet Union - Thursday, 24th July - Gold Medal: Caren Metschuk, East Germany | 
| | Final |  | time | gap | L | Y |  | 1. Caren Metschuck |  East Germany | 1:00.42 |  | - | 16 |  | 2. Andrea Pollack |  East Germany | 1:00.90 | +0.48s | - | 19 |  | 3. Christiane Knacke |  East Germany | 1:01.44 | +1.02s | - | 18 |  | 4. Ann Osgerby |  Great Britain | 1:02.21 | +1.79s | - | 17 |  | 5. Lisa Curry-Kenny |  Australia | 1:02.40 | +1.98s | - | 18 |  | 6. Agneta Martensson |  Sweden | 1:02.61 | +2.19s | - | 18 |  | 7. Maria Paris |  Costa Rica | 1:02.89 | +2.47s | - | 19 |  | 8. Janet Osgerby |  Great Britain | 1:02.90 | +2.48s | - | 17 | 
 | Standarts: 1:04.13, 1:02.90 | 
 | World Record: Mary Meagher, United States 59.26s Austin, United States 11 April 1980 |  | Olympic Record: Kornelia Ender, East Germany 1:00.13 Montreal, Canada 22nd July 1976 | 
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| Heats - Wednesday, 23rd July | 
| Best 8 times advanced to Final. | 
| | Heat 4 |  | time | gap | L | Y | Rk |  | 1. Andrea Pollack |  East Germany | 1:00.91 |  | - | 19 | 1. |  | 2. Ann Osgerby |  Great Britain | 1:01.93 | +1.02s | - | 17 | 4. |  | 3. Janet Osgerby |  Great Britain | 1:02.84 | +1.93s | - | 17 | 7. |  | 4. Alla Grishchenkova |  Soviet Union | 1:04.10 | +3.19s | - | 18 | 15. |  | 5. Sonja Hausladen |  Austria | 1:04.39 | +3.48s | - | 17 | 16. |  | 6. Marion Michel |  Belgium | 1:07.81 | +6.90s | - | 16 | 22. | 
 |  | | Heat 3 |  | time | gap | L | Y | Rk |  | 1. Caren Metschuck |  East Germany | 1:01.08 | +0.17s | - | 16 | 2. |  | 2. Eva Miklosfalvi |  Hungary | 1:03.17 | +2.26s | - | 20 | 10. |  | 3. Cinzia Savi-Scarponi |  Italy | 1:03.41 | +2.50s | - | 16 | 12. |  | 4. Dorota Brzozowska |  Poland | 1:04.04 | +3.13s | - | 15 | 14. |  | 5. Armi Airaksinen |  Sweden | 1:04.40 | +3.49s | - | 18 | 17. |  | 6. Nadia Fezzani |  Libya | 1:12.94 | +12.03s | - | _ | 24. |  | -. Dagmar Erdman |  Mexico | DNS |  | - | 14 | -. | 
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| | Heat 2 |  | time | gap | L | Y | Rk |  | 1. Christiane Knacke |  East Germany | 1:01.32 | +0.41s | - | 18 | 3. |  | 2. Susan Cooper |  Great Britain | 1:02.95 | +2.04s | - | 17 | 9. |  | 3. Wilma Van Velsen |  Netherlands | 1:03.31 | +2.40s | - | 16 | 11. |  | 4. Karen Van De Graaf |  Australia | 1:03.62 | +2.71s | - | 17 | 13. |  | 5. Mariana Paraschiv |  Romania | 1:05.34 | +4.43s | - | 17 | 19. |  | 6. Celeste Garcia |  Peru | 1:06.25 | +5.34s | - | 15 | 21. | 
 |  | | Heat 1 |  | time | gap | L | Y | Rk |  | 1. Agneta Martensson |  Sweden | 1:02.79 | +1.88s | - | 18 | 5. |  | 2. Maria Paris |  Costa Rica | 1:02.80 | +1.89s | - | 19 | 6. |  | 3. Lisa Curry-Kenny |  Australia | 1:02.92 | +2.01s | - | 18 | 8. |  | 4. Larisa Polivoda |  Soviet Union | 1:04.50 | +3.59s | - | 16 | 18. |  | 5. Carole Brook |  Switzerland | 1:05.93 | +5.02s | - | 15 | 20. |  | 6. Bako Ratsifa |  Madagascar | 1:09.43 | +8.52s | - | 16 | 23. | 
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Last updated: 6 May 2022
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