| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 25.436 | N/A |
| 2 | 4 | 25.566 | 19/8:05.624 |
| 3 | 4 | 25.215 | 19/8:02.465 |
| 4 | 4 | 28.632 | 19/8:21.914 |
| 5 | 4 | 22.284 | 19/8:03.072 |
| 6 | 4 | 29.606 | 19/8:18.126 |
| 7 | 4 | 21.402 | 19/8:03.551 |
| 8 | 4 | 29.044 | 19/8:12.790 |
| 9 | 4 | 26.779 | 19/8:14.624 |
| 10 | 4 | 24.582 | 19/8:11.656 |
| 11 | 4 | 24.525 | 19/8:09.179 |
| 12 | 4 | 27.432 | 19/8:11.909 |
| 13 | 4 | 32.287 | 19/8:21.467 |
| 14 | 4 | 29.254 | 19/8:25.354 |
| 15 | 4 | 22.875 | 19/8:20.485 |
| 16 | 4 | 26.433 | 19/8:20.535 |
| 17 | 4 | 43.182 | 18/8:11.977 |
| 18 | 4 | 30.051 | 18/8:14.585 |