| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 25.661 | N/A |
| 2 | 4 | 20.668 | 21/7:19.021 |
| 3 | 3 | 20.697 | 21/7:19.311 |
| 4 | 2 | 20.282 | 21/7:16.641 |
| 5 | 2 | 20.181 | 21/7:14.801 |
| 6 | 2 | 20.219 | 21/7:13.849 |
| 7 | 2 | 20.275 | 21/7:13.401 |
| 8 | 2 | 20.177 | 21/7:12.801 |
| 9 | 2 | 19.923 | 21/7:11.716 |
| 10 | 2 | 20.900 | 21/7:13.043 |
| 11 | 2 | 19.842 | 21/7:11.989 |
| 12 | 2 | 20.278 | 21/7:11.919 |
| 13 | 2 | 20.20 | 21/7:11.397 |
| 14 | 2 | 20.729 | 21/7:12.077 |
| 15 | 2 | 20.704 | 21/7:12.625 |
| 16 | 2 | 20.023 | 21/7:12.191 |
| 17 | 2 | 19.991 | 21/7:11.772 |
| 18 | 2 | 21.066 | 21/7:12.666 |
| 19 | 2 | 21.147 | 21/7:13.552 |
| 20 | 2 | 20.178 | 21/7:13.324 |
| 21 | 2 | 20.417 | 21/7:13.358 |