| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 23.750 | N/A |
| 2 | 2 | 26.382 | 19/8:18.626 |
| 3 | 2 | 24.760 | 19/8:04.028 |
| 4 | 2 | 24.701 | 20/8:24.089 |
| 5 | 2 | 28.169 | 19/8:11.804 |
| 6 | 3 | 27.401 | 19/8:16.836 |
| 7 | 2 | 26.623 | 19/8:17.858 |
| 8 | 2 | 24.360 | 19/8:12.768 |
| 9 | 2 | 26.486 | 19/8:13.734 |
| 10 | 2 | 28.811 | 19/8:19.136 |
| 11 | 2 | 29.349 | 19/8:24.425 |
| 12 | 3 | 28.832 | 18/8:01.009 |
| 13 | 3 | 24.405 | 19/8:24.168 |
| 14 | 3 | 26.223 | 19/8:23.522 |
| 15 | 3 | 28.478 | 19/8:25.867 |
| 16 | 3 | 26.020 | 19/8:24.095 |
| 17 | 4 | 31.860 | 18/8:03.663 |
| 18 | 3 | 28.787 | 18/8:05.397 |