| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 17.297 | 21/6:03.237 |
| 2 | 4 | 17.683 | 21/6:07.290 |
| 3 | 3 | 17.331 | 21/6:06.177 |
| 4 | 3 | 17.827 | 21/6:08.225 |
| 5 | 3 | 17.495 | 21/6:08.059 |
| 6 | 3 | 17.561 | 21/6:08.179 |
| 7 | 3 | 17.908 | 21/6:09.306 |
| 8 | 3 | 17.626 | 21/6:09.411 |
| 9 | 3 | 17.875 | 21/6:10.074 |
| 10 | 3 | 17.891 | 21/6:10.637 |
| 11 | 3 | 17.476 | 21/6:10.306 |
| 12 | 3 | 18.597 | 21/6:11.992 |
| 13 | 4 | 23.952 | 20/6:03.875 |
| 14 | 4 | 17.861 | 20/6:03.400 |
| 15 | 4 | 17.672 | 20/6:02.736 |
| 16 | 4 | 17.495 | 20/6:01.934 |
| 17 | 4 | 18.396 | 20/6:02.286 |
| 18 | 4 | 18.432 | 20/6:02.639 |
| 19 | 4 | 18.584 | 20/6:03.115 |
| 20 | 4 | 18.036 | 20/6:02.995 |