| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 21.345 | 17/6:02.865 |
| 2 | 1 | 20.398 | 18/6:15.687 |
| 3 | 2 | 20.681 | 18/6:14.544 |
| 4 | 2 | 19.804 | 18/6:10.026 |
| 5 | 1 | 20.360 | 18/6:09.317 |
| 6 | 1 | 19.959 | 18/6:07.641 |
| 7 | 1 | 21.391 | 18/6:10.126 |
| 8 | 1 | 20.723 | 18/6:10.487 |
| 9 | 2 | 22.120 | 18/6:13.562 |
| 10 | 2 | 20.394 | 18/6:12.915 |
| 11 | 2 | 20.885 | 18/6:13.189 |
| 12 | 2 | 23.492 | 18/6:17.328 |
| 13 | 2 | 20.520 | 18/6:16.715 |
| 14 | 2 | 20.559 | 18/6:16.240 |
| 15 | 1 | 24.239 | 18/6:20.244 |
| 16 | 1 | 20.748 | 18/6:19.820 |
| 17 | 1 | 20.859 | 18/6:19.564 |
| 18 | 1 | 20.959 | 18/6:19.436 |