| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.068 | 20/6:01.360 |
| 2 | 1 | 18.089 | 20/6:01.570 |
| 3 | 1 | 17.929 | 20/6:00.573 |
| 4 | 1 | 18.434 | 20/6:02.600 |
| 5 | 1 | 18.359 | 20/6:03.516 |
| 6 | 1 | 19.008 | 20/6:06.290 |
| 7 | 1 | 18.479 | 20/6:06.760 |
| 8 | 1 | 18.722 | 20/6:07.720 |
| 9 | 1 | 20.556 | 20/6:12.542 |
| 10 | 1 | 18.257 | 20/6:11.802 |
| 11 | 1 | 18.760 | 20/6:12.111 |
| 12 | 1 | 18.779 | 20/6:12.400 |
| 13 | 1 | 18.572 | 20/6:12.326 |
| 14 | 1 | 19.070 | 20/6:12.974 |
| 15 | 1 | 19.252 | 20/6:13.779 |
| 16 | 1 | 18.645 | 20/6:13.724 |
| 17 | 1 | 18.847 | 20/6:13.913 |
| 18 | 1 | 18.875 | 20/6:14.112 |
| 19 | 1 | 19.392 | 20/6:14.835 |
| 20 | 1 | 18.296 | 20/6:14.389 |