| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 18.105 | 20/6:02.100 |
| 2 | 4 | 18.953 | 20/6:10.580 |
| 3 | 3 | 18.839 | 20/6:12.647 |
| 4 | 3 | 19.062 | 20/6:14.795 |
| 5 | 3 | 18.718 | 20/6:14.708 |
| 6 | 3 | 18.638 | 20/6:14.383 |
| 7 | 3 | 20.248 | 20/6:18.751 |
| 8 | 3 | 18.609 | 20/6:17.930 |
| 9 | 3 | 18.793 | 20/6:17.700 |
| 10 | 3 | 18.888 | 20/6:17.706 |
| 11 | 3 | 18.847 | 20/6:17.636 |
| 12 | 3 | 19.496 | 20/6:18.660 |
| 13 | 3 | 19.368 | 19/6:00.363 |
| 14 | 3 | 18.815 | 19/6:00.157 |
| 15 | 3 | 19.685 | 19/6:01.081 |
| 16 | 3 | 18.567 | 19/6:00.562 |
| 17 | 3 | 18.426 | 20/6:18.891 |
| 18 | 3 | 18.693 | 20/6:18.611 |
| 19 | 3 | 18.699 | 20/6:18.367 |
| 20 | 3 | 20.536 | 20/6:19.985 |