| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 20.536 | 21/7:11.256 |
| 2 | 3 | 20.909 | 21/7:15.173 |
| 3 | 2 | 19.118 | 21/7:03.941 |
| 4 | 2 | 18.712 | 22/7:16.013 |
| 5 | 2 | 22.990 | 21/7:09.513 |
| 6 | 2 | 18.528 | 21/7:02.776 |
| 7 | 2 | 20.410 | 21/7:03.609 |
| 8 | 2 | 22.712 | 21/7:10.277 |
| 9 | 2 | 19.518 | 21/7:08.010 |
| 10 | 2 | 17.396 | 21/7:01.741 |
| 11 | 2 | 20.758 | 21/7:03.030 |
| 12 | 2 | 20.351 | 21/7:03.392 |
| 13 | 2 | 21.705 | 21/7:05.885 |
| 14 | 2 | 17.730 | 21/7:02.060 |
| 15 | 2 | 20.439 | 21/7:02.537 |
| 16 | 2 | 18.640 | 21/7:00.593 |
| 17 | 2 | 17.943 | 22/7:17.923 |
| 18 | 2 | 20.344 | 22/7:18.459 |
| 19 | 2 | 17.541 | 22/7:15.693 |
| 20 | 2 | 24.154 | 21/7:00.456 |
| 21 | 2 | 23.008 | 21/7:03.442 |