| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 28.739 | N/A |
| 2 | 4 | 23.501 | 21/8:18.759 |
| 3 | 4 | 23.202 | 21/8:15.769 |
| 4 | 3 | 23.635 | 21/8:17.659 |
| 5 | 3 | 21.239 | 21/8:06.624 |
| 6 | 3 | 22.983 | 21/8:06.979 |
| 7 | 3 | 21.098 | 21/8:00.932 |
| 8 | 2 | 20.772 | 22/8:18.029 |
| 9 | 2 | 20.948 | 22/8:14.356 |
| 10 | 2 | 20.419 | 22/8:10.265 |
| 11 | 3 | 29.666 | 21/8:03.665 |
| 12 | 3 | 26.219 | 21/8:09.979 |
| 13 | 3 | 21.614 | 21/8:07.565 |
| 14 | 3 | 23.613 | 21/8:08.599 |
| 15 | 2 | 22.867 | 21/8:08.419 |
| 16 | 3 | 23.263 | 21/8:08.791 |
| 17 | 3 | 26.774 | 21/8:13.505 |
| 18 | 4 | 29.745 | 21/8:21.160 |
| 19 | 4 | 22.330 | 21/8:19.725 |
| 20 | 4 | 22.585 | 21/8:18.710 |
| 21 | 4 | 20.353 | 21/8:15.565 |