| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 17.937 | 21/6:16.677 |
| 2 | 3 | 16.749 | 21/6:04.203 |
| 3 | 3 | 17.386 | 21/6:04.504 |
| 4 | 2 | 17.698 | 21/6:06.293 |
| 5 | 1 | 17.950 | 21/6:08.424 |
| 6 | 2 | 17.689 | 21/6:08.932 |
| 7 | 1 | 17.261 | 21/6:08.010 |
| 8 | 1 | 18.614 | 21/6:10.871 |
| 9 | 2 | 18.516 | 21/6:12.867 |
| 10 | 2 | 17.638 | 21/6:12.620 |
| 11 | 2 | 17.841 | 21/6:12.805 |
| 12 | 1 | 17.682 | 21/6:12.682 |
| 13 | 1 | 17.996 | 21/6:13.084 |
| 14 | 1 | 20.471 | 21/6:17.142 |
| 15 | 1 | 17.628 | 21/6:16.678 |
| 16 | 4 | 23.406 | 20/6:05.578 |
| 17 | 5 | 20.108 | 20/6:07.729 |
| 18 | 6 | 18.909 | 20/6:08.310 |
| 19 | 5 | 17.957 | 20/6:07.827 |
| 20 | 5 | 17.501 | 20/6:06.937 |