| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 20.260 | 21/7:05.460 |
| 2 | 4 | 20.258 | 21/7:05.439 |
| 3 | 3 | 19.459 | 22/7:19.831 |
| 4 | 4 | 20.333 | 21/7:01.627 |
| 5 | 3 | 19.715 | 21/7:00.105 |
| 6 | 4 | 25.971 | 21/7:20.986 |
| 7 | 4 | 20.237 | 21/7:18.699 |
| 8 | 4 | 19.872 | 21/7:16.026 |
| 9 | 4 | 23.925 | 20/7:02.289 |
| 10 | 4 | 23.092 | 20/7:06.244 |
| 11 | 4 | 20.881 | 20/7:05.460 |
| 12 | 4 | 22.866 | 20/7:08.115 |
| 13 | 4 | 19.449 | 20/7:05.105 |
| 14 | 4 | 20.263 | 20/7:03.687 |
| 15 | 4 | 19.726 | 20/7:01.743 |
| 16 | 4 | 20.236 | 20/7:00.679 |
| 17 | 4 | 25.574 | 20/7:06.020 |
| 18 | 4 | 20.084 | 20/7:04.668 |
| 19 | 4 | 19.936 | 20/7:03.302 |
| 20 | 4 | 22.935 | 20/7:05.072 |