| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 21.283 | 20/7:05.660 |
| 2 | 2 | 20.424 | 21/7:17.923 |
| 3 | 2 | 20.448 | 21/7:15.085 |
| 4 | 3 | 24.885 | 20/7:15.200 |
| 5 | 3 | 21.271 | 20/7:13.244 |
| 6 | 3 | 19.722 | 20/7:06.777 |
| 7 | 3 | 20.543 | 20/7:04.503 |
| 8 | 3 | 21.255 | 20/7:04.578 |
| 9 | 3 | 21.822 | 20/7:05.896 |
| 10 | 3 | 20.647 | 20/7:04.600 |
| 11 | 3 | 21.015 | 20/7:04.209 |
| 12 | 3 | 23.547 | 20/7:08.103 |
| 13 | 3 | 21.586 | 20/7:08.382 |
| 14 | 3 | 25.284 | 20/7:13.903 |
| 15 | 3 | 20.882 | 20/7:12.819 |
| 16 | 3 | 22.421 | 20/7:13.794 |
| 17 | 3 | 22.388 | 20/7:14.615 |
| 18 | 3 | 25.556 | 20/7:18.866 |
| 19 | 3 | 23.062 | 20/7:20.043 |
| 20 | 3 | 22.453 | 20/7:20.494 |