| 0. 0 | 27.41 | ||
| 27.82 | (0.41) | 56.85 | (29.03) |
| 57.71 | (0.86) | 1:26.56 | (28.85) |
| 1:28.12 | (1.56) | 1:56.47 | (28.35) |
| 1:58.75 | (2.28) | 2:26.28 | (27.53) |
| 2:29.48 | (3.20) | 2:56.52 | (27.04) |
| 3:00.29 | (3.77) | 3:25.96 | (25.67) |
| 3:31.37 | (5.41) | 3:55.68 | (24.31) |
| 4:02.09 | (6.41) | 4:25.61 | (23.52) |
| 4:33.23 | (7.62) | 4:54.98 | (21.75) |