| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.344 | 18/6:06.192 |
| 2 | 4 | 20.788 | 18/6:10.188 |
| 3 | 3 | 20.157 | 18/6:07.734 |
| 4 | 4 | 20.346 | 18/6:07.358 |
| 5 | 3 | 19.762 | 18/6:05.029 |
| 6 | 3 | 20.631 | 18/6:06.084 |
| 7 | 3 | 20.186 | 18/6:05.693 |
| 8 | 4 | 20.851 | 18/6:06.896 |
| 9 | 4 | 22.576 | 18/6:11.282 |
| 10 | 4 | 19.793 | 18/6:09.781 |
| 11 | 4 | 19.762 | 18/6:08.503 |
| 12 | 4 | 19.730 | 18/6:07.389 |
| 13 | 4 | 19.780 | 18/6:06.516 |
| 14 | 4 | 19.968 | 18/6:06.009 |
| 15 | 4 | 19.991 | 18/6:05.598 |
| 16 | 4 | 19.649 | 18/6:04.853 |
| 17 | 4 | 20.419 | 18/6:05.011 |
| 18 | 4 | 19.966 | 18/6:04.699 |