| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 20.241 | 18/6:04.338 |
| 2 | 2 | 20.482 | 18/6:06.507 |
| 3 | 2 | 20.420 | 18/6:06.858 |
| 4 | 2 | 20.089 | 18/6:05.544 |
| 5 | 2 | 20.754 | 18/6:07.150 |
| 6 | 3 | 20.660 | 18/6:07.938 |
| 7 | 2 | 20.323 | 18/6:07.635 |
| 8 | 2 | 20.278 | 18/6:07.306 |
| 9 | 2 | 20.425 | 18/6:07.344 |
| 10 | 2 | 20.569 | 18/6:07.634 |
| 11 | 3 | 20.901 | 18/6:08.414 |
| 12 | 3 | 20.113 | 18/6:07.882 |
| 13 | 2 | 19.854 | 18/6:07.074 |
| 14 | 2 | 20.512 | 18/6:07.227 |
| 15 | 2 | 20.220 | 18/6:07.009 |
| 16 | 2 | 20.461 | 18/6:07.090 |
| 17 | 2 | 20.437 | 18/6:07.135 |
| 18 | 2 | 20.869 | 18/6:07.608 |