| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 17.447 | 21/6:06.387 |
| 2 | 1 | 17.210 | 21/6:03.898 |
| 3 | 1 | 17.498 | 21/6:05.085 |
| 4 | 1 | 17.191 | 21/6:04.067 |
| 5 | 1 | 17.408 | 21/6:04.367 |
| 6 | 2 | 19.467 | 21/6:11.774 |
| 7 | 1 | 17.720 | 21/6:11.823 |
| 8 | 2 | 23.793 | 20/6:09.335 |
| 9 | 2 | 16.717 | 20/6:05.447 |
| 10 | 2 | 17.543 | 20/6:03.988 |
| 11 | 2 | 16.930 | 20/6:01.680 |
| 12 | 2 | 20.643 | 20/6:05.945 |
| 13 | 2 | 19.594 | 20/6:07.940 |
| 14 | 2 | 18.198 | 20/6:07.656 |
| 15 | 2 | 17.287 | 20/6:06.195 |
| 16 | 2 | 18.273 | 20/6:06.149 |
| 17 | 2 | 21.561 | 20/6:09.976 |
| 18 | 2 | 16.883 | 20/6:08.181 |
| 19 | 2 | 17.211 | 20/6:06.920 |
| 20 | 2 | 24.843 | 20/6:13.417 |