| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 20.323 | 21/7:06.783 |
| 2 | 2 | 20.636 | 21/7:10.070 |
| 3 | 2 | 19.441 | 21/7:02.800 |
| 4 | 2 | 21.539 | 21/7:10.180 |
| 5 | 2 | 22.581 | 21/7:18.984 |
| 6 | 2 | 20.298 | 21/7:16.863 |
| 7 | 1 | 19.807 | 21/7:13.875 |
| 8 | 1 | 20.158 | 21/7:12.555 |
| 9 | 2 | 28.085 | 20/7:08.596 |
| 10 | 1 | 22.891 | 20/7:11.518 |
| 11 | 1 | 20.189 | 20/7:08.996 |
| 12 | 2 | 21.187 | 20/7:08.558 |
| 13 | 2 | 22.479 | 20/7:10.175 |
| 14 | 2 | 20.067 | 20/7:08.116 |
| 15 | 2 | 20.503 | 20/7:06.912 |
| 16 | 1 | 21.982 | 20/7:07.707 |
| 17 | 1 | 21.485 | 20/7:07.825 |
| 18 | 1 | 22.453 | 20/7:09.004 |
| 19 | 1 | 26.141 | 20/7:13.942 |
| 20 | 1 | 21.527 | 20/7:13.772 |