| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.973 | 21/7:20.433 |
| 2 | 3 | 20.917 | 21/7:19.845 |
| 3 | 2 | 21.006 | 21/7:20.272 |
| 4 | 2 | 21.605 | 20/7:02.505 |
| 5 | 2 | 20.944 | 20/7:01.780 |
| 6 | 2 | 24.028 | 20/7:11.577 |
| 7 | 3 | 25.407 | 19/7:00.389 |
| 8 | 3 | 20.209 | 20/7:17.723 |
| 9 | 3 | 22.639 | 20/7:19.396 |
| 10 | 3 | 20.548 | 20/7:16.552 |
| 11 | 3 | 21.029 | 20/7:15.100 |
| 12 | 3 | 20.315 | 20/7:12.700 |
| 13 | 3 | 20.882 | 20/7:11.542 |
| 14 | 3 | 21.272 | 20/7:11.106 |
| 15 | 3 | 22.588 | 20/7:12.483 |
| 16 | 3 | 24.943 | 20/7:16.631 |
| 17 | 3 | 20.518 | 20/7:15.086 |
| 18 | 3 | 21.145 | 20/7:14.409 |
| 19 | 2 | 20.481 | 20/7:13.104 |
| 20 | 1 | 22.157 | 20/7:13.606 |