| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 31.269 | N/A |
| 2 | 3 | 23.908 | 20/8:05.521 |
| 3 | 3 | 22.187 | 21/8:12.219 |
| 4 | 4 | 29.191 | 19/8:02.985 |
| 5 | 4 | 28.742 | 19/8:19.395 |
| 6 | 4 | 29.647 | 18/8:05.764 |
| 7 | 4 | 21.707 | 19/8:17.415 |
| 8 | 4 | 24.336 | 19/8:13.401 |
| 9 | 4 | 22.089 | 19/8:05.334 |
| 10 | 5 | 26.447 | 19/8:07.777 |
| 11 | 4 | 24.700 | 19/8:06.586 |
| 12 | 4 | 28.159 | 19/8:11.272 |
| 13 | 5 | 27.269 | 19/8:13.842 |
| 14 | 4 | 23.806 | 19/8:11.221 |
| 15 | 4 | 22.538 | 19/8:07.345 |
| 16 | 4 | 22.093 | 19/8:03.451 |
| 17 | 4 | 20.829 | 20/8:23.476 |
| 18 | 5 | 30.028 | 19/8:04.102 |
| 19 | 4 | 25.606 | 19/8:04.551 |