| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 18.819 | N/A |
| 2 | 2 | 17.326 | 21/6:05.339 |
| 3 | 2 | 17.243 | 21/6:04.509 |
| 4 | 2 | 16.674 | 21/6:00.439 |
| 5 | 3 | 18.703 | 21/6:08.549 |
| 6 | 4 | 18.284 | 21/6:11.739 |
| 7 | 4 | 15.703 | 21/6:05.262 |
| 8 | 4 | 16.720 | 21/6:03.541 |
| 9 | 4 | 24.508 | 20/6:03.576 |
| 10 | 4 | 22.339 | 20/6:12.430 |
| 11 | 4 | 16.848 | 20/6:09.080 |
| 12 | 4 | 20.844 | 20/6:13.241 |
| 13 | 4 | 17.102 | 20/6:10.784 |
| 14 | 4 | 18.707 | 20/6:11.051 |
| 15 | 4 | 19.691 | 20/6:12.615 |
| 16 | 4 | 14.960 | 20/6:07.978 |
| 17 | 4 | 28.192 | 19/6:00.643 |
| 18 | 4 | 18.205 | 20/6:18.756 |
| 19 | 4 | 18.569 | 20/6:18.360 |
| 20 | 4 | 27.393 | 20/6:26.830 |