| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 32.012 | N/A |
| 2 | 2 | 23.864 | 20/8:05.428 |
| 3 | 2 | 23.061 | 21/8:21.262 |
| 4 | 2 | 22.687 | 21/8:16.092 |
| 5 | 2 | 25.831 | 20/8:05.366 |
| 6 | 2 | 23.613 | 20/8:04.424 |
| 7 | 2 | 23.421 | 20/8:03.189 |
| 8 | 2 | 33.659 | 19/8:04.933 |
| 9 | 2 | 26.085 | 19/8:07.009 |
| 10 | 2 | 22.751 | 19/8:01.956 |
| 11 | 2 | 26.666 | 19/8:04.960 |
| 12 | 2 | 22.779 | 19/8:01.058 |
| 13 | 3 | 28.750 | 19/8:06.762 |
| 14 | 3 | 22.848 | 19/8:03.417 |
| 15 | 3 | 27.430 | 19/8:06.441 |
| 16 | 3 | 25.016 | 19/8:06.165 |
| 17 | 3 | 22.542 | 19/8:03.140 |
| 18 | 3 | 23.023 | 19/8:00.980 |
| 19 | 3 | 22.717 | 20/8:23.574 |
| 20 | 3 | 23.980 | 20/8:22.735 |