| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 17.687 | 21/6:11.427 |
| 2 | 1 | 17.687 | 21/6:11.427 |
| 3 | 1 | 18.381 | 21/6:16.285 |
| 4 | 1 | 17.051 | 21/6:11.731 |
| 5 | 1 | 17.908 | 21/6:12.598 |
| 6 | 1 | 19.794 | 20/6:01.693 |
| 7 | 1 | 18.928 | 20/6:04.102 |
| 8 | 1 | 20.589 | 20/6:10.062 |
| 9 | 1 | 16.535 | 20/6:05.688 |
| 10 | 1 | 19.769 | 20/6:08.658 |
| 11 | 1 | 17.984 | 20/6:07.841 |
| 12 | 1 | 16.985 | 20/6:05.496 |
| 13 | 1 | 18.771 | 20/6:06.026 |
| 14 | 1 | 17.325 | 20/6:04.848 |
| 15 | 1 | 18.780 | 20/6:05.565 |
| 16 | 1 | 17.691 | 20/6:04.831 |
| 17 | 1 | 17.570 | 20/6:04.041 |
| 18 | 1 | 19.807 | 20/6:05.824 |
| 19 | 1 | 16.950 | 20/6:04.412 |
| 20 | 1 | 16.747 | 20/6:02.939 |