| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 17.426 | 21/6:05.946 |
| 2 | 1 | 17.668 | 21/6:08.487 |
| 3 | 1 | 17.467 | 21/6:07.927 |
| 4 | 1 | 18.691 | 21/6:14.073 |
| 5 | 1 | 17.108 | 21/6:11.112 |
| 6 | 1 | 17.135 | 21/6:09.233 |
| 7 | 4 | 23.392 | 20/6:08.249 |
| 8 | 4 | 17.491 | 20/6:05.945 |
| 9 | 4 | 17.658 | 20/6:04.524 |
| 10 | 4 | 17.884 | 20/6:03.840 |
| 11 | 4 | 18.362 | 20/6:04.149 |
| 12 | 4 | 17.889 | 20/6:03.618 |
| 13 | 3 | 18.903 | 20/6:04.729 |
| 14 | 3 | 18.988 | 20/6:05.803 |
| 15 | 3 | 18.008 | 20/6:05.427 |
| 16 | 3 | 17.500 | 20/6:04.462 |
| 17 | 3 | 17.732 | 20/6:03.885 |
| 18 | 3 | 19.382 | 20/6:05.204 |
| 19 | 3 | 17.640 | 20/6:04.552 |
| 20 | 4 | 18.086 | 20/6:04.410 |