| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 23.929 | N/A |
| 2 | 1 | 20.032 | 21/7:04.569 |
| 3 | 1 | 21.379 | 21/7:18.039 |
| 4 | 1 | 19.978 | 21/7:13.189 |
| 5 | 1 | 19.905 | 21/7:10.399 |
| 6 | 1 | 20.437 | 21/7:10.853 |
| 7 | 1 | 19.992 | 21/7:09.672 |
| 8 | 1 | 19.696 | 21/7:07.983 |
| 9 | 1 | 20.834 | 21/7:09.561 |
| 10 | 1 | 21.336 | 21/7:11.904 |
| 11 | 1 | 20.948 | 21/7:13.003 |
| 12 | 1 | 20.059 | 21/7:12.285 |
| 13 | 1 | 20.242 | 21/7:11.992 |
| 14 | 1 | 20.248 | 21/7:11.753 |
| 15 | 1 | 20.104 | 21/7:11.343 |
| 16 | 1 | 20.219 | 21/7:11.141 |
| 17 | 1 | 21.486 | 21/7:12.547 |
| 18 | 1 | 20.695 | 21/7:12.858 |
| 19 | 1 | 20.540 | 21/7:12.962 |
| 20 | 1 | 19.885 | 21/7:12.365 |
| 21 | 1 | 20.120 | 21/7:12.064 |