| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 18.858 | 20/6:17.160 |
| 2 | 2 | 18.366 | 20/6:12.240 |
| 3 | 1 | 18.559 | 20/6:11.887 |
| 4 | 1 | 18.666 | 20/6:12.245 |
| 5 | 1 | 18.414 | 20/6:11.452 |
| 6 | 1 | 18.420 | 20/6:10.943 |
| 7 | 1 | 18.157 | 20/6:09.829 |
| 8 | 1 | 19.073 | 20/6:11.283 |
| 9 | 1 | 18.197 | 20/6:10.467 |
| 10 | 1 | 19.067 | 20/6:11.554 |
| 11 | 1 | 18.387 | 20/6:11.207 |
| 12 | 1 | 18.361 | 20/6:10.875 |
| 13 | 1 | 18.391 | 20/6:10.640 |
| 14 | 1 | 19.198 | 20/6:11.591 |
| 15 | 1 | 18.532 | 20/6:11.528 |
| 16 | 1 | 18.829 | 20/6:11.844 |
| 17 | 1 | 18.336 | 20/6:11.542 |
| 18 | 1 | 18.388 | 20/6:11.332 |
| 19 | 1 | 18.254 | 20/6:11.003 |
| 20 | 1 | 18.616 | 20/6:11.069 |