| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 33.980 | N/A |
| 2 | 4 | 22.313 | 21/8:00.024 |
| 3 | 4 | 23.260 | 21/8:09.071 |
| 4 | 3 | 23.563 | 21/8:14.886 |
| 5 | 3 | 24.587 | 21/8:22.595 |
| 6 | 3 | 26.278 | 20/8:09.983 |
| 7 | 3 | 29.147 | 19/8:01.424 |
| 8 | 3 | 28.106 | 19/8:09.776 |
| 9 | 3 | 24.135 | 19/8:07.105 |
| 10 | 4 | 31.440 | 19/8:19.638 |
| 11 | 4 | 24.908 | 19/8:17.906 |
| 12 | 4 | 35.744 | 18/8:07.541 |
| 13 | 4 | 27.592 | 18/8:08.833 |
| 14 | 4 | 26.734 | 18/8:08.804 |
| 15 | 4 | 25.812 | 18/8:07.660 |
| 16 | 4 | 28.997 | 18/8:10.278 |
| 17 | 4 | 32.592 | 18/8:16.388 |
| 18 | 4 | 29.225 | 18/8:18.413 |