| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 22.803 | N/A |
| 2 | 2 | 19.885 | 21/7:00.503 |
| 3 | 2 | 20.302 | 21/7:04.673 |
| 4 | 1 | 19.829 | 21/7:02.909 |
| 5 | 3 | 24.930 | 20/7:06.296 |
| 6 | 3 | 19.787 | 20/7:00.788 |
| 7 | 3 | 19.816 | 21/7:17.966 |
| 8 | 3 | 19.629 | 21/7:14.740 |
| 9 | 3 | 20.029 | 21/7:13.320 |
| 10 | 2 | 20.801 | 21/7:13.931 |
| 11 | 2 | 19.909 | 21/7:12.637 |
| 12 | 2 | 19.597 | 21/7:11.010 |
| 13 | 2 | 19.893 | 21/7:10.148 |
| 14 | 2 | 19.447 | 21/7:08.732 |
| 15 | 3 | 29.695 | 20/7:01.190 |
| 16 | 3 | 19.982 | 21/7:20.844 |
| 17 | 3 | 20.166 | 21/7:19.924 |
| 18 | 2 | 19.723 | 21/7:18.591 |
| 19 | 2 | 19.806 | 21/7:17.498 |
| 20 | 2 | 23.630 | 21/7:20.546 |
| 21 | 2 | 24.678 | 21/7:24.337 |