| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 20.386 | N/A |
| 2 | 1 | 16.525 | 18/5:01.311 |
| 3 | 2 | 20.037 | 17/5:12.882 |
| 4 | 2 | 16.331 | 17/5:02.482 |
| 5 | 2 | 16.302 | 18/5:14.464 |
| 6 | 2 | 17.324 | 18/5:14.550 |
| 7 | 2 | 17.058 | 18/5:13.854 |
| 8 | 1 | 17.479 | 18/5:14.379 |
| 9 | 1 | 17.058 | 18/5:13.878 |
| 10 | 1 | 16.842 | 18/5:13.080 |
| 11 | 1 | 17.057 | 18/5:12.808 |
| 12 | 1 | 17.210 | 18/5:12.821 |
| 13 | 2 | 18.035 | 18/5:14.001 |
| 14 | 1 | 18.854 | 18/5:16.070 |
| 15 | 2 | 17.822 | 18/5:16.591 |
| 16 | 2 | 17.623 | 18/5:16.817 |
| 17 | 2 | 17.226 | 18/5:16.592 |
| 18 | 2 | 16.799 | 18/5:15.968 |