| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 17.209 | 21/6:01.389 |
| 2 | 4 | 17.186 | 21/6:01.147 |
| 3 | 4 | 17.659 | 21/6:04.378 |
| 4 | 4 | 17.508 | 21/6:05.200 |
| 5 | 4 | 16.791 | 21/6:02.683 |
| 6 | 4 | 22.516 | 20/6:02.897 |
| 7 | 4 | 16.692 | 21/6:16.683 |
| 8 | 4 | 19.566 | 20/6:02.817 |
| 9 | 4 | 19.575 | 20/6:06.004 |
| 10 | 4 | 17.879 | 20/6:05.162 |
| 11 | 4 | 18.569 | 20/6:05.727 |
| 12 | 4 | 16.633 | 20/6:02.972 |
| 13 | 4 | 20.976 | 20/6:07.322 |
| 14 | 4 | 16.862 | 20/6:05.173 |
| 15 | 4 | 18.462 | 20/6:05.444 |
| 16 | 4 | 18.557 | 20/6:05.800 |
| 17 | 4 | 17.934 | 20/6:05.381 |
| 18 | 4 | 19.052 | 20/6:06.251 |
| 19 | 4 | 16.712 | 20/6:04.566 |
| 20 | 4 | 17.051 | 20/6:03.389 |