| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.464 | 21/7:09.744 |
| 2 | 4 | 20.774 | 21/7:12.999 |
| 3 | 4 | 20.987 | 21/7:15.575 |
| 4 | 4 | 20.625 | 21/7:14.962 |
| 5 | 4 | 21.177 | 21/7:16.913 |
| 6 | 4 | 20.402 | 21/7:15.501 |
| 7 | 4 | 21.888 | 21/7:18.951 |
| 8 | 4 | 30.719 | 19/7:00.460 |
| 9 | 4 | 20.975 | 20/7:20.024 |
| 10 | 4 | 21.860 | 20/7:19.742 |
| 11 | 4 | 28.051 | 19/7:08.228 |
| 12 | 3 | 21.559 | 19/7:06.678 |
| 13 | 3 | 22.493 | 19/7:06.731 |
| 14 | 3 | 20.630 | 19/7:04.248 |
| 15 | 3 | 21.391 | 19/7:03.060 |
| 16 | 3 | 20.827 | 19/7:01.351 |
| 17 | 3 | 22.114 | 19/7:01.281 |
| 18 | 3 | 21.365 | 19/7:00.428 |
| 19 | 3 | 21.667 | 20/7:22.071 |
| 20 | 3 | 20.657 | 20/7:20.625 |