Swimming at the 2000 Summer Olympics – Women's 100 metre breaststroke Semifinal 1 Semifinal 1

| Rank_ | Lane | Name_ | Nationality | Time_ |
|---|---|---|---|---|
| 1 | 5 | Sarah Poewe | South Africa | 1:07.48 |
| 2 | 3 | Ágnes Kovács | Hungary | 1:07.79 |
| 3 | 4 | Penny Heyns | South Africa | 1:08.33 |
| 4 | 6 | Sylvia Gerasch | Germany | 1:09.33 |
| 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 |