| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 21.437 | 17/6:04.429 |
| 2 | 2 | 21.113 | 17/6:01.675 |
| 3 | 2 | 20.445 | 18/6:17.970 |
| 4 | 3 | 20.962 | 18/6:17.806 |
| 5 | 4 | 22.126 | 17/6:00.682 |
| 6 | 4 | 20.650 | 18/6:20.199 |
| 7 | 4 | 21.054 | 18/6:20.024 |
| 8 | 4 | 21.080 | 18/6:19.951 |
| 9 | 4 | 20.823 | 18/6:19.380 |
| 10 | 4 | 21.960 | 18/6:20.970 |
| 11 | 4 | 20.548 | 18/6:19.960 |
| 12 | 4 | 21.010 | 18/6:19.812 |
| 13 | 4 | 20.668 | 18/6:19.213 |
| 14 | 4 | 20.651 | 18/6:18.678 |
| 15 | 4 | 20.849 | 18/6:18.451 |
| 16 | 4 | 20.716 | 18/6:18.104 |
| 17 | 4 | 20.938 | 18/6:18.032 |
| 18 | 4 | 21.267 | 18/6:18.297 |