| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 5 | 20.280 | 18/6:05.040 |
| 2 | 3 | 20.131 | 18/6:03.699 |
| 3 | 3 | 21.201 | 18/6:09.672 |
| 4 | 4 | 19.555 | 18/6:05.252 |
| 5 | 3 | 19.274 | 18/6:01.588 |
| 6 | 3 | 19.652 | 18/6:00.279 |
| 7 | 4 | 18.907 | 19/6:17.286 |
| 8 | 4 | 20.491 | 19/6:18.791 |
| 9 | 4 | 20.943 | 18/6:00.868 |
| 10 | 4 | 20.179 | 18/6:01.103 |
| 11 | 4 | 19.232 | 19/6:19.732 |
| 12 | 5 | 20.288 | 18/6:00.200 |
| 13 | 4 | 19.083 | 19/6:18.854 |
| 14 | 4 | 19.292 | 19/6:17.975 |
| 15 | 4 | 19.250 | 19/6:17.160 |
| 16 | 4 | 21.022 | 19/6:18.551 |
| 17 | 4 | 19.669 | 19/6:18.267 |
| 18 | 5 | 22.076 | 18/6:00.525 |