| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.947 | 18/6:17.046 |
| 2 | 3 | 20.655 | 18/6:14.418 |
| 3 | 4 | 20.544 | 18/6:12.876 |
| 4 | 4 | 20.953 | 18/6:13.946 |
| 5 | 3 | 20.584 | 18/6:13.259 |
| 6 | 4 | 20.952 | 18/6:13.905 |
| 7 | 4 | 21.248 | 18/6:15.128 |
| 8 | 4 | 20.437 | 18/6:14.220 |
| 9 | 4 | 21.066 | 18/6:14.772 |
| 10 | 4 | 21.033 | 18/6:15.154 |
| 11 | 4 | 21.323 | 18/6:15.941 |
| 12 | 4 | 20.652 | 18/6:15.591 |
| 13 | 4 | 21.003 | 18/6:15.780 |
| 14 | 4 | 21.523 | 18/6:16.611 |
| 15 | 4 | 22.029 | 18/6:17.939 |
| 16 | 4 | 21.017 | 18/6:17.962 |
| 17 | 4 | 21.095 | 18/6:18.065 |
| 18 | 4 | 21.343 | 18/6:18.404 |