| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 20.396 | 21/7:08.316 |
| 2 | 2 | 20.368 | 21/7:08.022 |
| 3 | 4 | 20.908 | 21/7:11.704 |
| 4 | 3 | 20.402 | 21/7:10.888 |
| 5 | 3 | 19.819 | 21/7:07.950 |
| 6 | 3 | 21.035 | 21/7:10.248 |
| 7 | 3 | 20.197 | 21/7:09.375 |
| 8 | 3 | 20.725 | 21/7:10.106 |
| 9 | 3 | 20.463 | 21/7:10.063 |
| 10 | 3 | 20.494 | 21/7:10.094 |
| 11 | 2 | 21.260 | 21/7:11.582 |
| 12 | 4 | 31.018 | 20/7:08.475 |
| 13 | 4 | 20.657 | 20/7:07.295 |
| 14 | 3 | 20.487 | 20/7:06.041 |
| 15 | 3 | 19.953 | 20/7:04.242 |
| 16 | 3 | 23.042 | 20/7:06.053 |
| 17 | 3 | 21.371 | 20/7:06.582 |
| 18 | 3 | 20.239 | 20/7:05.371 |
| 19 | 3 | 20.562 | 20/7:04.627 |
| 20 | 3 | 22.714 | 20/7:06.110 |