| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 17.982 | 21/6:17.622 |
| 2 | 2 | 17.290 | 21/6:10.356 |
| 3 | 2 | 17.724 | 21/6:10.972 |
| 4 | 2 | 17.512 | 21/6:10.167 |
| 5 | 2 | 17.243 | 21/6:08.554 |
| 6 | 2 | 17.925 | 21/6:09.866 |
| 7 | 2 | 17.804 | 21/6:10.440 |
| 8 | 2 | 17.782 | 21/6:10.813 |
| 9 | 2 | 17.855 | 21/6:11.273 |
| 10 | 2 | 18.518 | 21/6:13.034 |
| 11 | 3 | 18.071 | 21/6:13.621 |
| 12 | 3 | 17.910 | 21/6:13.828 |
| 13 | 3 | 17.764 | 21/6:13.768 |
| 14 | 3 | 17.932 | 21/6:13.968 |
| 15 | 3 | 17.640 | 21/6:13.733 |
| 16 | 3 | 17.886 | 21/6:13.850 |
| 17 | 4 | 18.435 | 21/6:14.631 |
| 18 | 4 | 18.18 | 21/6:14.819 |
| 19 | 3 | 17.870 | 21/6:14.842 |
| 20 | 3 | 17.277 | 21/6:14.241 |
| 21 | 4 | 18.213 | 21/6:14.633 |