| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 21.636 | 20/7:12.720 |
| 2 | 2 | 21.512 | 20/7:11.480 |
| 3 | 2 | 21.160 | 20/7:08.720 |
| 4 | 1 | 21.679 | 20/7:09.935 |
| 5 | 1 | 21.448 | 20/7:09.740 |
| 6 | 1 | 21.179 | 20/7:08.713 |
| 7 | 1 | 21.194 | 20/7:08.023 |
| 8 | 2 | 27.242 | 19/7:00.494 |
| 9 | 2 | 20.793 | 20/7:19.651 |
| 10 | 2 | 21.569 | 20/7:18.824 |
| 11 | 2 | 26.840 | 19/7:05.344 |
| 12 | 2 | 22.208 | 19/7:05.062 |
| 13 | 2 | 20.753 | 19/7:02.696 |
| 14 | 2 | 21.577 | 19/7:01.786 |
| 15 | 2 | 21.792 | 19/7:01.271 |
| 16 | 2 | 21.353 | 19/7:00.298 |
| 17 | 1 | 20.993 | 20/7:21.092 |
| 18 | 2 | 22.333 | 20/7:21.401 |
| 19 | 1 | 21.555 | 20/7:20.859 |
| 20 | 1 | 24.313 | 20/7:23.129 |