| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 33.248 | N/A |
| 2 | 3 | 25.072 | 19/8:04.544 |
| 3 | 3 | 25.804 | 19/8:11.132 |
| 4 | 2 | 25.671 | 19/8:12.053 |
| 5 | 2 | 27.160 | 19/8:19.929 |
| 6 | 2 | 25.356 | 19/8:17.874 |
| 7 | 2 | 22.630 | 19/8:08.327 |
| 8 | 2 | 23.758 | 19/8:04.407 |
| 9 | 2 | 23.214 | 19/8:00.244 |
| 10 | 2 | 24.396 | 20/8:24.154 |
| 11 | 2 | 26.366 | 19/8:02.216 |
| 12 | 2 | 23.707 | 19/8:00.194 |
| 13 | 2 | 23.799 | 20/8:23.391 |
| 14 | 2 | 26.172 | 19/8:00.624 |
| 15 | 2 | 28.440 | 19/8:05.234 |
| 16 | 2 | 24.629 | 19/8:04.656 |
| 17 | 2 | 26.001 | 19/8:05.694 |
| 18 | 2 | 24.492 | 19/8:05.013 |
| 19 | 2 | 23.576 | 19/8:03.491 |