| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 26.579 | N/A |
| 2 | 2 | 22.835 | 21/8:03.279 |
| 3 | 2 | 23.306 | 21/8:07.989 |
| 4 | 2 | 21.075 | 22/8:17.091 |
| 5 | 3 | 25.507 | 21/8:10.194 |
| 6 | 3 | 24.382 | 21/8:14.999 |
| 7 | 3 | 22.032 | 21/8:10.369 |
| 8 | 3 | 30.315 | 20/8:06.520 |
| 9 | 3 | 20.655 | 21/8:21.846 |
| 10 | 4 | 1:06.832 | 17/8:03.359 |
| 11 | 4 | 22.012 | 18/8:20.795 |
| 12 | 4 | 20.926 | 18/8:10.025 |
| 13 | 4 | 23.101 | 18/8:04.131 |
| 14 | 4 | 20.889 | 19/8:22.702 |
| 15 | 4 | 21.571 | 19/8:16.427 |
| 16 | 4 | 20.188 | 19/8:09.330 |
| 17 | 5 | 21.409 | 19/8:04.493 |
| 18 | 4 | 22.771 | 19/8:01.667 |
| 19 | 3 | 29.871 | 19/8:06.256 |