| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.387 | 18/6:06.966 |
| 2 | 4 | 20.505 | 18/6:08.028 |
| 3 | 4 | 19.999 | 18/6:05.346 |
| 4 | 3 | 19.824 | 18/6:03.217 |
| 5 | 4 | 21.190 | 18/6:06.858 |
| 6 | 4 | 21.176 | 18/6:09.243 |
| 7 | 4 | 23.841 | 18/6:17.799 |
| 8 | 4 | 19.811 | 18/6:15.149 |
| 9 | 4 | 20.470 | 18/6:14.406 |
| 10 | 4 | 19.476 | 18/6:12.022 |
| 11 | 4 | 19.023 | 18/6:09.331 |
| 12 | 4 | 19.700 | 18/6:08.103 |
| 13 | 4 | 20.803 | 18/6:08.592 |
| 14 | 4 | 20.551 | 18/6:08.686 |
| 15 | 4 | 20.154 | 18/6:08.292 |
| 16 | 4 | 19.657 | 18/6:07.388 |
| 17 | 4 | 19.390 | 18/6:06.307 |
| 18 | 5 | 21.504 | 18/6:07.461 |