| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 21.111 | 18/6:19.998 |
| 2 | 2 | 20.514 | 18/6:14.625 |
| 3 | 2 | 20.814 | 18/6:14.634 |
| 4 | 2 | 21.516 | 18/6:17.798 |
| 5 | 2 | 19.915 | 18/6:13.932 |
| 6 | 2 | 19.605 | 18/6:10.425 |
| 7 | 2 | 20.283 | 18/6:09.663 |
| 8 | 2 | 20.930 | 18/6:10.548 |
| 9 | 2 | 21.086 | 18/6:11.548 |
| 10 | 2 | 21.028 | 18/6:12.244 |
| 11 | 2 | 20.179 | 18/6:11.423 |
| 12 | 2 | 20.787 | 18/6:11.652 |
| 13 | 2 | 20.039 | 18/6:10.810 |
| 14 | 2 | 20.018 | 18/6:10.061 |
| 15 | 2 | 20.504 | 18/6:09.995 |
| 16 | 2 | 20.893 | 18/6:10.375 |
| 17 | 2 | 20.789 | 18/6:10.600 |
| 18 | 2 | 19.944 | 18/6:09.955 |