| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 20.447 | 21/7:09.387 |
| 2 | 1 | 20.788 | 21/7:12.967 |
| 3 | 1 | 19.523 | 21/7:05.306 |
| 4 | 1 | 19.536 | 21/7:01.543 |
| 5 | 1 | 20.067 | 21/7:01.516 |
| 6 | 1 | 19.034 | 22/7:17.782 |
| 7 | 1 | 19.394 | 22/7:16.194 |
| 8 | 1 | 20.975 | 22/7:19.351 |
| 9 | 1 | 22.165 | 21/7:04.501 |
| 10 | 1 | 21.352 | 21/7:06.890 |
| 11 | 1 | 23.483 | 21/7:12.913 |
| 12 | 2 | 34.396 | 20/7:15.267 |
| 13 | 2 | 20.182 | 20/7:12.834 |
| 14 | 2 | 22.237 | 20/7:13.684 |
| 15 | 2 | 19.879 | 20/7:11.277 |
| 16 | 2 | 30.409 | 19/7:00.217 |
| 17 | 2 | 25.208 | 19/7:03.672 |
| 18 | 2 | 22.873 | 19/7:04.278 |
| 19 | 2 | 22.907 | 19/7:04.855 |