| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.914 | N/A |
| 2 | 1 | 17.299 | 21/6:04.894 |
| 3 | 1 | 17.344 | 21/6:05.344 |
| 4 | 1 | 17.299 | 21/6:05.194 |
| 5 | 2 | 17.911 | 21/6:08.179 |
| 6 | 2 | 17.318 | 21/6:07.598 |
| 7 | 2 | 17.638 | 21/6:08.277 |
| 8 | 2 | 17.798 | 21/6:09.219 |
| 9 | 2 | 17.761 | 21/6:09.834 |
| 10 | 2 | 17.617 | 21/6:09.991 |
| 11 | 2 | 17.769 | 21/6:10.422 |
| 12 | 2 | 17.491 | 21/6:10.268 |
| 13 | 2 | 17.466 | 21/6:10.099 |
| 14 | 2 | 17.848 | 21/6:10.543 |
| 15 | 2 | 18.143 | 21/6:11.345 |
| 16 | 2 | 18.106 | 21/6:11.991 |
| 17 | 2 | 17.920 | 21/6:12.324 |
| 18 | 2 | 18.567 | 21/6:13.378 |
| 19 | 2 | 17.564 | 21/6:13.201 |
| 20 | 2 | 17.811 | 21/6:13.303 |
| 21 | 2 | 17.723 | 21/6:13.307 |