| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 20.471 | 21/7:09.891 |
| 2 | 4 | 23.775 | 19/7:00.337 |
| 3 | 3 | 23.229 | 19/7:07.342 |
| 4 | 3 | 19.762 | 20/7:16.185 |
| 5 | 3 | 24.218 | 19/7:03.529 |
| 6 | 4 | 21.042 | 20/7:21.657 |
| 7 | 2 | 20.216 | 20/7:16.323 |
| 8 | 2 | 20.814 | 20/7:13.818 |
| 9 | 2 | 20.888 | 20/7:12.033 |
| 10 | 2 | 20.573 | 20/7:09.976 |
| 11 | 2 | 20.963 | 20/7:09.002 |
| 12 | 2 | 21.852 | 20/7:09.672 |
| 13 | 2 | 20.870 | 20/7:08.728 |
| 14 | 2 | 20.603 | 20/7:07.537 |
| 15 | 2 | 20.286 | 20/7:06.083 |
| 16 | 2 | 21.051 | 20/7:05.766 |
| 17 | 2 | 26.647 | 20/7:12.071 |
| 18 | 2 | 22.610 | 20/7:13.189 |
| 19 | 3 | 24.612 | 20/7:16.297 |
| 20 | 2 | 21.679 | 20/7:16.161 |