| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 20.860 | N/A |
| 2 | 2 | 21.258 | 17/6:00.988 |
| 3 | 2 | 25.093 | 16/6:08.492 |
| 4 | 2 | 19.936 | 17/6:14.390 |
| 5 | 2 | 19.963 | 17/6:05.086 |
| 6 | 2 | 21.912 | 17/6:06.978 |
| 7 | 2 | 19.603 | 17/6:01.566 |
| 8 | 2 | 21.111 | 17/6:01.148 |
| 9 | 1 | 20.659 | 18/6:21.121 |
| 10 | 1 | 19.835 | 18/6:18.558 |
| 11 | 2 | 25.933 | 17/6:05.344 |
| 12 | 2 | 20.186 | 17/6:03.389 |
| 13 | 1 | 22.258 | 17/6:04.522 |
| 14 | 1 | 19.962 | 17/6:02.655 |
| 15 | 2 | 19.386 | 17/6:00.397 |
| 16 | 2 | 20.507 | 18/6:20.808 |
| 17 | 2 | 21.457 | 18/6:21.110 |
| 18 | 1 | 20.564 | 18/6:20.483 |