| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.238 | 20/6:04.760 |
| 2 | 1 | 18.192 | 20/6:04.300 |
| 3 | 1 | 18.218 | 20/6:04.320 |
| 4 | 1 | 17.875 | 20/6:02.615 |
| 5 | 2 | 19.794 | 20/6:09.268 |
| 6 | 2 | 19.546 | 20/6:12.877 |
| 7 | 2 | 18.130 | 20/6:11.409 |
| 8 | 2 | 18.876 | 20/6:12.173 |
| 9 | 2 | 18.432 | 20/6:11.780 |
| 10 | 2 | 23.474 | 19/6:02.472 |
| 11 | 2 | 21.635 | 19/6:06.890 |
| 12 | 2 | 19.387 | 19/6:07.012 |
| 13 | 2 | 19.336 | 19/6:07.041 |
| 14 | 2 | 19.282 | 19/6:06.992 |
| 15 | 2 | 19.567 | 19/6:07.311 |
| 16 | 2 | 20.658 | 19/6:08.885 |
| 17 | 2 | 18.841 | 19/6:08.243 |
| 18 | 2 | 19.413 | 19/6:08.277 |
| 19 | 2 | 21.689 | 19/6:10.583 |