| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 23.963 | N/A |
| 2 | 3 | 19.824 | 21/7:00.443 |
| 3 | 3 | 20.144 | 21/7:03.643 |
| 4 | 3 | 21.022 | 21/7:10.563 |
| 5 | 2 | 21.586 | 21/7:16.843 |
| 6 | 2 | 21.487 | 21/7:20.215 |
| 7 | 2 | 21.719 | 20/7:02.272 |
| 8 | 2 | 20.548 | 20/7:01.144 |
| 9 | 2 | 19.882 | 21/7:19.493 |
| 10 | 2 | 19.442 | 21/7:16.527 |
| 11 | 2 | 18.808 | 21/7:12.887 |
| 12 | 3 | 22.892 | 21/7:17.333 |
| 13 | 3 | 19.388 | 21/7:15.199 |
| 14 | 3 | 19.861 | 21/7:14.121 |
| 15 | 3 | 30.796 | 20/7:07.575 |
| 16 | 4 | 27.624 | 20/7:15.658 |
| 17 | 4 | 19.728 | 20/7:13.354 |
| 18 | 4 | 19.511 | 20/7:11.079 |
| 19 | 4 | 25.551 | 20/7:15.432 |
| 20 | 4 | 24.794 | 20/7:18.570 |