| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 20.383 | 18/6:06.894 |
| 2 | 2 | 20.230 | 18/6:05.517 |
| 3 | 2 | 20.054 | 18/6:04.002 |
| 4 | 1 | 19.820 | 18/6:02.191 |
| 5 | 1 | 20.177 | 18/6:02.390 |
| 6 | 1 | 20.398 | 18/6:03.186 |
| 7 | 1 | 19.954 | 18/6:02.613 |
| 8 | 1 | 20.238 | 18/6:02.821 |
| 9 | 1 | 19.945 | 18/6:02.398 |
| 10 | 2 | 20.944 | 18/6:03.857 |
| 11 | 1 | 20.043 | 18/6:03.577 |
| 12 | 1 | 20.409 | 18/6:03.892 |
| 13 | 1 | 20.641 | 18/6:04.481 |
| 14 | 1 | 20.962 | 18/6:05.397 |
| 15 | 1 | 20.690 | 18/6:05.866 |
| 16 | 1 | 20.710 | 18/6:06.298 |
| 17 | 1 | 21.049 | 18/6:07.038 |
| 18 | 1 | 20.718 | 18/6:07.365 |