| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 31.382 | N/A |
| 2 | 3 | 21.372 | 22/8:00.194 |
| 3 | 3 | 21.199 | 23/8:19.663 |
| 4 | 4 | 34.822 | 19/8:15.074 |
| 5 | 4 | 24.833 | 19/8:11.399 |
| 6 | 3 | 21.885 | 20/8:23.003 |
| 7 | 4 | 24.655 | 20/8:22.474 |
| 8 | 4 | 28.810 | 19/8:08.006 |
| 9 | 3 | 21.596 | 20/8:24.415 |
| 10 | 3 | 31.075 | 19/8:11.876 |
| 11 | 3 | 22.181 | 19/8:05.752 |
| 12 | 4 | 33.097 | 19/8:18.604 |
| 13 | 4 | 22.187 | 19/8:12.095 |
| 14 | 4 | 22.060 | 19/8:07.989 |
| 15 | 3 | 22.142 | 19/8:03.842 |
| 16 | 4 | 31.854 | 19/8:11.903 |
| 17 | 3 | 22.686 | 19/8:08.642 |
| 18 | 3 | 20.680 | 19/8:03.641 |
| 19 | 3 | 22.467 | 19/8:00.983 |