| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 25.495 | N/A |
| 2 | 3 | 19.737 | 21/7:00.235 |
| 3 | 3 | 18.854 | 22/7:10.700 |
| 4 | 4 | 19.612 | 22/7:12.916 |
| 5 | 4 | 20.377 | 22/7:18.004 |
| 6 | 4 | 19.081 | 22/7:15.671 |
| 7 | 3 | 18.088 | 22/7:10.616 |
| 8 | 4 | 23.584 | 21/7:03.589 |
| 9 | 4 | 20.006 | 21/7:03.842 |
| 10 | 5 | 26.469 | 21/7:18.401 |
| 11 | 4 | 18.701 | 21/7:14.513 |
| 12 | 4 | 22.856 | 21/7:18.885 |
| 13 | 4 | 20.814 | 21/7:19.126 |
| 14 | 5 | 17.773 | 21/7:14.651 |
| 15 | 4 | 22.205 | 21/7:17.147 |
| 16 | 4 | 19.998 | 21/7:16.368 |
| 17 | 6 | 23.637 | 21/7:20.235 |
| 18 | 4 | 24.833 | 20/7:04.075 |
| 19 | 5 | 24.340 | 20/7:07.624 |
| 20 | 5 | 23.960 | 20/7:10.420 |