| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.316 | 18/6:05.688 |
| 2 | 2 | 19.196 | 19/6:15.364 |
| 3 | 1 | 19.348 | 19/6:12.780 |
| 4 | 1 | 18.357 | 19/6:06.781 |
| 5 | 2 | 19.297 | 19/6:06.753 |
| 6 | 1 | 18.961 | 19/6:05.671 |
| 7 | 2 | 20.119 | 19/6:08.041 |
| 8 | 3 | 23.212 | 19/6:17.164 |
| 9 | 4 | 20.814 | 19/6:19.198 |
| 10 | 4 | 21.217 | 18/6:01.507 |
| 11 | 4 | 20.762 | 18/6:02.617 |
| 12 | 4 | 20.261 | 18/6:02.790 |
| 13 | 4 | 20.811 | 18/6:03.698 |
| 14 | 4 | 18.937 | 18/6:02.067 |
| 15 | 4 | 21.466 | 18/6:03.689 |
| 16 | 4 | 19.022 | 18/6:02.358 |
| 17 | 4 | 18.837 | 18/6:00.988 |
| 18 | 4 | 20.448 | 18/6:01.381 |