| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 25.393 | N/A |
| 2 | 2 | 27.059 | 18/8:05.396 |
| 3 | 2 | 28.847 | 18/8:20.594 |
| 4 | 2 | 27.325 | 18/8:17.035 |
| 5 | 2 | 25.957 | 18/8:09.442 |
| 6 | 1 | 30.525 | 18/8:20.417 |
| 7 | 2 | 29.132 | 18/8:23.787 |
| 8 | 1 | 24.880 | 18/8:15.868 |
| 9 | 1 | 24.496 | 18/8:09.112 |
| 10 | 1 | 24.636 | 18/8:04.122 |
| 11 | 1 | 24.808 | 18/8:00.423 |
| 12 | 1 | 31.113 | 18/8:07.140 |
| 13 | 1 | 25.756 | 18/8:05.149 |
| 14 | 1 | 25.783 | 18/8:03.499 |
| 15 | 1 | 24.058 | 19/8:26.732 |
| 16 | 1 | 26.954 | 18/8:00.232 |
| 17 | 1 | 28.551 | 18/8:02.140 |
| 18 | 1 | 26.624 | 18/8:01.897 |