| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 21.209 | 17/6:00.553 |
| 2 | 4 | 21.141 | 18/6:21.150 |
| 3 | 3 | 20.451 | 18/6:16.806 |
| 4 | 3 | 20.608 | 18/6:15.340 |
| 5 | 3 | 20.477 | 18/6:13.990 |
| 6 | 3 | 20.079 | 18/6:11.895 |
| 7 | 3 | 20.968 | 18/6:12.685 |
| 8 | 3 | 21.167 | 18/6:13.725 |
| 9 | 3 | 21.127 | 18/6:14.454 |
| 10 | 4 | 20.917 | 18/6:14.659 |
| 11 | 4 | 21.097 | 18/6:15.122 |
| 12 | 4 | 20.826 | 18/6:15.101 |
| 13 | 4 | 20.733 | 18/6:14.954 |
| 14 | 4 | 21.880 | 18/6:16.303 |
| 15 | 4 | 21.752 | 18/6:17.318 |
| 16 | 4 | 21.233 | 18/6:17.623 |
| 17 | 4 | 21.299 | 18/6:17.962 |
| 18 | 4 | 21.235 | 18/6:18.199 |