| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 20.777 | 18/6:13.986 |
| 2 | 2 | 20.930 | 18/6:15.363 |
| 3 | 1 | 19.005 | 18/6:04.272 |
| 4 | 1 | 21.487 | 18/6:09.895 |
| 5 | 2 | 21.130 | 18/6:11.984 |
| 6 | 2 | 22.071 | 18/6:16.200 |
| 7 | 2 | 20.809 | 18/6:15.966 |
| 8 | 2 | 21.811 | 18/6:18.045 |
| 9 | 2 | 21.165 | 18/6:18.370 |
| 10 | 3 | 20.225 | 18/6:16.938 |
| 11 | 3 | 20.283 | 18/6:15.861 |
| 12 | 3 | 21.051 | 18/6:16.116 |
| 13 | 3 | 22.270 | 18/6:18.019 |
| 14 | 4 | 21.415 | 18/6:18.552 |
| 15 | 3 | 20.544 | 18/6:17.968 |
| 16 | 3 | 20.344 | 18/6:17.232 |
| 17 | 3 | 20.746 | 18/6:17.008 |
| 18 | 3 | 20.327 | 18/6:16.390 |