| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 5 | 20.382 | 18/6:06.876 |
| 2 | 3 | 20.091 | 18/6:04.257 |
| 3 | 3 | 20.028 | 18/6:03.006 |
| 4 | 4 | 20.762 | 18/6:05.684 |
| 5 | 3 | 21.118 | 18/6:08.572 |
| 6 | 3 | 20.498 | 18/6:08.637 |
| 7 | 5 | 20.581 | 18/6:08.897 |
| 8 | 5 | 20.590 | 18/6:09.113 |
| 9 | 5 | 20.012 | 18/6:08.124 |
| 10 | 5 | 20.387 | 18/6:08.008 |
| 11 | 5 | 20.730 | 18/6:08.475 |
| 12 | 5 | 20.202 | 18/6:08.072 |
| 13 | 5 | 19.841 | 18/6:07.230 |
| 14 | 5 | 21.176 | 18/6:08.226 |
| 15 | 5 | 20.313 | 18/6:08.053 |
| 16 | 5 | 20.238 | 18/6:07.818 |
| 17 | 5 | 21.425 | 18/6:08.867 |
| 18 | 5 | 19.910 | 18/6:08.284 |