| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 21.317 | 17/6:02.389 |
| 2 | 2 | 20.570 | 18/6:16.983 |
| 3 | 2 | 20.577 | 18/6:14.784 |
| 4 | 2 | 20.864 | 18/6:14.976 |
| 5 | 2 | 20.626 | 18/6:14.234 |
| 6 | 2 | 20.709 | 18/6:13.989 |
| 7 | 2 | 20.644 | 18/6:13.647 |
| 8 | 2 | 21.610 | 18/6:15.563 |
| 9 | 3 | 21.943 | 18/6:17.720 |
| 10 | 3 | 21.546 | 18/6:18.731 |
| 11 | 2 | 20.989 | 18/6:18.646 |
| 12 | 2 | 21.237 | 18/6:18.948 |
| 13 | 2 | 21.002 | 18/6:18.878 |
| 14 | 2 | 21.345 | 18/6:19.259 |
| 15 | 2 | 20.945 | 18/6:19.109 |
| 16 | 3 | 21.285 | 18/6:19.360 |
| 17 | 3 | 21.380 | 18/6:19.682 |
| 18 | 3 | 21.485 | 18/6:20.074 |