| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 17.714 | 21/6:11.994 |
| 2 | 1 | 17.472 | 21/6:09.453 |
| 3 | 2 | 17.968 | 21/6:12.078 |
| 4 | 1 | 17.506 | 21/6:10.965 |
| 5 | 1 | 17.291 | 21/6:09.394 |
| 6 | 2 | 20.927 | 20/6:02.927 |
| 7 | 2 | 17.581 | 20/6:01.311 |
| 8 | 2 | 18.089 | 20/6:01.370 |
| 9 | 2 | 17.769 | 20/6:00.704 |
| 10 | 2 | 19.157 | 20/6:02.948 |
| 11 | 2 | 17.797 | 20/6:02.311 |
| 12 | 2 | 18.474 | 20/6:02.908 |
| 13 | 2 | 17.687 | 20/6:02.203 |
| 14 | 2 | 18.105 | 20/6:02.196 |
| 15 | 2 | 18.283 | 20/6:02.427 |
| 16 | 2 | 17.978 | 20/6:02.248 |
| 17 | 2 | 17.464 | 20/6:01.485 |
| 18 | 2 | 18.154 | 20/6:01.573 |
| 19 | 2 | 17.726 | 20/6:01.202 |
| 20 | 2 | 23.657 | 20/6:06.799 |