| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 18.364 | 20/6:07.280 |
| 2 | 1 | 18.197 | 20/6:05.610 |
| 3 | 1 | 18.614 | 20/6:07.833 |
| 4 | 1 | 18.181 | 20/6:06.780 |
| 5 | 1 | 18.407 | 20/6:07.052 |
| 6 | 1 | 18.702 | 20/6:08.217 |
| 7 | 1 | 18.464 | 20/6:08.369 |
| 8 | 1 | 18.903 | 20/6:09.580 |
| 9 | 1 | 18.683 | 20/6:10.033 |
| 10 | 1 | 18.705 | 20/6:10.440 |
| 11 | 3 | 20.234 | 20/6:13.553 |
| 12 | 3 | 18.500 | 20/6:13.257 |
| 13 | 3 | 18.438 | 20/6:12.911 |
| 14 | 2 | 18.629 | 20/6:12.887 |
| 15 | 2 | 18.703 | 20/6:12.965 |
| 16 | 1 | 18.638 | 20/6:12.952 |
| 17 | 1 | 18.559 | 20/6:12.848 |
| 18 | 1 | 18.737 | 20/6:12.953 |
| 19 | 1 | 19.163 | 20/6:13.496 |
| 20 | 1 | 18.838 | 20/6:13.659 |