| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 20.861 | N/A |
| 2 | 1 | 22.593 | 19/7:07.535 |
| 3 | 2 | 23.733 | 19/7:17.795 |
| 4 | 2 | 22.643 | 19/7:14.675 |
| 5 | 1 | 21.590 | 19/7:08.376 |
| 6 | 1 | 22.539 | 19/7:08.013 |
| 7 | 1 | 22.343 | 19/7:07.184 |
| 8 | 1 | 22.737 | 19/7:07.604 |
| 9 | 2 | 30.218 | 18/7:01.202 |
| 10 | 2 | 21.733 | 19/7:21.119 |
| 11 | 3 | 31.176 | 18/7:11.079 |
| 12 | 3 | 23.459 | 18/7:10.041 |
| 13 | 3 | 21.209 | 18/7:05.989 |
| 14 | 3 | 22.126 | 18/7:03.759 |
| 15 | 3 | 25.233 | 18/7:05.621 |
| 16 | 2 | 23.078 | 18/7:04.792 |
| 17 | 2 | 23.738 | 18/7:04.768 |
| 18 | 2 | 22.316 | 18/7:03.325 |