# Swimming at the 2000 Summer Olympics – Women's 100 metre breaststroke

The women's 100 metre breaststroke event at the 2000 Summer Olympics took place on 17–18 September at the Sydney International Aquatic Centre in Sydney, Australia.
At only 16 years of age, U.S. swimmer Megan Quann fulfilled her merciless prediction by knocking off South Africa's defending Olympic champion Penny Heyns in the event. Coming from third at the final turn, she surged powerfully past the champion over the last 25 metres to snatch the gold medal in a new American record of 1:07.05, just a small fraction closer to an Olympic standard. Spurred on by the home crowd, 15 year-old Leisel Jones roared back from fifth place on the final stretch to take home the silver in 1:07.49. Heyns, who was struggling with her form in the prelims and semifinals, seized off a strong lead under a world-record pace (31.10), but ended up only with a bronze in a time of 1:07.55. Meanwhile, Sarah Poewe, the fastest qualifier for the final, trailed behind her teammate by three-tenths of a second in 1:07.85.
Outside the 1:08-club, Hungary's Ágnes Kovács finished fifth in 1:08.09, and was followed in sixth by Japan's Masami Tanaka with a time of 1:08.37. Aussie favorite Tarnee White (1:09.09) and 31-year-old Sylvia Gerasch (1:09.86), a product of the old East German system, closed out the field.
Notable swimmers missed out the top 8 final, featuring Quann's teammate Staciana Stitts, who had a poor start on the morning prelims with an eighteenth-place effort; and Angola's Nádia Cruz, the first for her nation to compete in all four editions of the Games since 1988.

## Records

Prior to this competition, the existing world and Olympic records were as follows.
| World record | Penny Heyns (RSA) | 1:06.52 | Sydney, Australia | 23 August 1999 |
| Olympic record | Penny Heyns (RSA) | 1:07.02 | Atlanta, United States | 21 July 1996 |

## Results
### Heats

| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | 4 | Megan Quann | United States | 1:07.48 | Q |
| 2 | 6 | 4 | Penny Heyns | South Africa | 1:07.85 | Q |
| 3 | 6 | 3 | Leisel Jones | Australia | 1:07.92 | Q |
| 4 | 4 | 5 | Sarah Poewe | South Africa | 1:08.06 | Q |
| 5 | 4 | 3 | Tarnee White | Australia | 1:08.35 | Q |
| 6 | 5 | 5 | Ágnes Kovács | Hungary | 1:08.50 | Q |
| 7 | 4 | 4 | Masami Tanaka | Japan | 1:09.12 | Q |
| 8 | 6 | 6 | Sylvia Gerasch | Germany | 1:09.31 | Q |
| 9 | 4 | 2 | Brigitte Becue | Belgium | 1:09.38 | Q |
| 10 | 4 | 7 | Christin Petelski | Canada | 1:09.57 | Q |
| 11 | 5 | 3 | Svitlana Bondarenko | Ukraine | 1:09.60 | Q |
| 12 | 6 | 2 | Rhiannon Leier | Canada | 1:09.68 | Q |
| 13 | 5 | 6 | Qi Hui | China | 1:09.88 | Q |
| 14 | 6 | 7 | Simone Karn | Germany | 1:09.94 | Q |
| 15 | 5 | 8 | Nataša Kejžar | Slovenia | 1:10.44 | Q, NR |
| 16 | 6 | 8 | Madelon Baans | Netherlands | 1:10.47 | Q |
| 17 | 5 | 1 | Olga Bakaldina | Russia | 1:10.53 | |
| 18 | 6 | 5 | Staciana Stitts | United States | 1:10.54 | |
| 19 | 4 | 6 | Li Wei | China | 1:10.55 | |
| 20 | 5 | 7 | Heidi Earp | Great Britain | 1:10.56 | |
| 21 | 5 | 2 | Alicja Pęczak | Poland | 1:10.57 | |
| 22 | 6 | 1 | Emma Igelström | Sweden | 1:11.09 | |
| 23 | 2 | 6 | İlkay Dikmen | Turkey | 1:11.51 | NR |
| 24 | 3 | 4 | Elvira Fischer | Austria | 1:11.58 | |
| 25 | 4 | 8 | Byun Hye-young | South Korea | 1:11.64 | |
| 26 | 3 | 1 | Isabel Ceballos | Colombia | 1:11.90 | NR |
| 27 | 3 | 7 | Agata Czaplicki | Switzerland | 1:13.19 | |
| 28 | 3 | 5 | Joscelin Yeo | Singapore | 1:13.25 | |
| 29 | 3 | 3 | Emma Robinson | Ireland | 1:13.41 | |
| 30 | 3 | 2 | Smiljana Marinović | Croatia | 1:13.49 | |
| 31 | 3 | 6 | Imaday Nuñez Gonzalez | Cuba | 1:13.91 | |
| 32 | 2 | 4 | Siow Yi Ting | Malaysia | 1:13.92 | |
| 33 | 2 | 3 | Íris Edda Heimisdóttir | Iceland | 1:14.07 | |
| 34 | 2 | 5 | Olga Moltchanova | Kyrgyzstan | 1:14.41 | |
| 35 | 3 | 8 | Jenny Rose Guerrero | Philippines | 1:15.14 | |
| 36 | 2 | 2 | Caroline Chiu Sin Wing | Hong Kong | 1:15.87 | |
| 37 | 2 | 1 | Katerine Moreno | Bolivia | 1:16.15 | NR |
| 38 | 2 | 7 | Nádia Cruz | Angola | 1:19.57 | |
| 39 | 2 | 8 | Xenia Peni | Papua New Guinea | 1:19.62 | |
| 40 | 1 | 3 | Mariam Pauline Keita | Mali | 1:37.80 | |
| 41 | 1 | 5 | Balkissa Ouhoumoudou | Niger | 1:42.39 | |
| | 1 | 4 | Doli Akhter | Bangladesh | DSQ | |
| | 1 | 6 | Pamela Girimbabazi | Rwanda | DSQ | |
| | 4 | 1 | Junko Isoda | Japan | DNS | |

### Semifinals
#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | Sarah Poewe | South Africa | 1:07.48 | Q |
| 2 | 3 | Ágnes Kovács | Hungary | 1:07.79 | Q, NR |
| 3 | 4 | Penny Heyns | South Africa | 1:08.33 | Q |
| 4 | 6 | Sylvia Gerasch | Germany | 1:09.33 | Q |
| 5 | 2 | Christin Petelski | Canada | 1:09.54 | |
| 6 | 7 | Rhiannon Leier | Canada | 1:09.63 | |
| 7 | 1 | Simone Karn | Germany | 1:09.85 | |
| 8 | 8 | Madelon Baans | Netherlands | 1:10.44 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Megan Quann | United States | 1:07.79 | Q |
| 2 | 5 | Leisel Jones | Australia | 1:08.03 | Q |
| 3 | 3 | Tarnee White | Australia | 1:08.61 | Q |
| 4 | 6 | Masami Tanaka | Japan | 1:09.04 | Q |
| 5 | 2 | Brigitte Becue | Belgium | 1:09.47 | |
| 6 | 1 | Qi Hui | China | 1:09.81 | |
| 7 | 7 | Svitlana Bondarenko | Ukraine | 1:09.84 | |
| 8 | 8 | Nataša Kejžar | Slovenia | 1:10.66 | |

### Final

| Rank | Lane | Name | Nationality | Time | Notes |
| | 5 | Megan Quann | United States | 1:07.05 | AM |
| | 6 | Leisel Jones | Australia | 1:07.49 | OC |
| | 2 | Penny Heyns | South Africa | 1:07.55 | |
| 4 | 4 | Sarah Poewe | South Africa | 1:07.85 | |
| 5 | 3 | Ágnes Kovács | Hungary | 1:08.09 | |
| 6 | 1 | Masami Tanaka | Japan | 1:08.37 | |
| 7 | 7 | Tarnee White | Australia | 1:09.09 | |
| 8 | 8 | Sylvia Gerasch | Germany | 1:09.86 | |