| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.138 | 20/6:02.760 |
| 2 | 1 | 17.993 | 20/6:01.310 |
| 3 | 1 | 17.697 | 21/6:16.796 |
| 4 | 1 | 17.988 | 21/6:17.034 |
| 5 | 1 | 18.009 | 21/6:17.265 |
| 6 | 1 | 18.030 | 21/6:17.493 |
| 7 | 2 | 18.287 | 20/6:00.406 |
| 8 | 1 | 17.915 | 20/6:00.142 |
| 9 | 1 | 18.721 | 20/6:01.729 |
| 10 | 2 | 19.044 | 20/6:03.644 |
| 11 | 2 | 20.298 | 20/6:07.491 |
| 12 | 1 | 17.650 | 20/6:06.283 |
| 13 | 1 | 18.507 | 20/6:06.580 |
| 14 | 1 | 18.403 | 20/6:06.686 |
| 15 | 2 | 18.464 | 20/6:06.859 |
| 16 | 2 | 19.073 | 20/6:07.771 |
| 17 | 2 | 21.436 | 20/6:11.356 |
| 18 | 2 | 18.801 | 20/6:11.616 |
| 19 | 2 | 17.854 | 20/6:10.851 |
| 20 | 2 | 19.719 | 20/6:12.027 |