| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 17.744 | 21/6:12.624 |
| 2 | 3 | 18.092 | 21/6:16.278 |
| 3 | 3 | 17.686 | 21/6:14.654 |
| 4 | 3 | 18.072 | 21/6:15.868 |
| 5 | 3 | 19.416 | 20/6:04.040 |
| 6 | 3 | 17.763 | 20/6:02.577 |
| 7 | 3 | 19.468 | 20/6:06.403 |
| 8 | 3 | 18.330 | 20/6:06.427 |
| 9 | 3 | 17.612 | 20/6:04.851 |
| 10 | 3 | 20.378 | 20/6:09.122 |
| 11 | 4 | 19.845 | 20/6:11.647 |
| 12 | 4 | 20.080 | 20/6:14.143 |
| 13 | 4 | 16.961 | 20/6:11.457 |
| 14 | 4 | 18.18 | 20/6:10.639 |
| 15 | 4 | 18.431 | 20/6:10.504 |
| 16 | 4 | 17.525 | 20/6:09.254 |
| 17 | 4 | 18.420 | 20/6:09.204 |
| 18 | 3 | 17.687 | 20/6:08.344 |
| 19 | 3 | 17.300 | 20/6:07.168 |
| 20 | 3 | 17.339 | 20/6:06.149 |