| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 19.823 | 19/6:16.637 |
| 2 | 4 | 19.865 | 19/6:17.036 |
| 3 | 2 | 19.990 | 19/6:17.961 |
| 4 | 2 | 20.956 | 18/6:02.853 |
| 5 | 2 | 19.745 | 18/6:01.364 |
| 6 | 2 | 21.202 | 18/6:04.743 |
| 7 | 3 | 20.268 | 18/6:04.755 |
| 8 | 3 | 24.165 | 18/6:13.531 |
| 9 | 3 | 20.075 | 18/6:12.178 |
| 10 | 3 | 20.363 | 18/6:11.614 |
| 11 | 3 | 22.855 | 18/6:15.230 |
| 12 | 3 | 19.657 | 18/6:13.446 |
| 13 | 3 | 20.115 | 18/6:12.571 |
| 14 | 4 | 23.747 | 18/6:16.491 |
| 15 | 4 | 20.219 | 18/6:15.654 |
| 16 | 4 | 20.155 | 18/6:14.850 |
| 17 | 4 | 23.608 | 18/6:17.797 |
| 18 | 4 | 20.012 | 18/6:16.820 |