| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.152 | 15/5:02.280 |
| 2 | 3 | 19.941 | 15/5:00.698 |
| 3 | 3 | 19.519 | 16/5:17.931 |
| 4 | 2 | 19.566 | 22/7:15.479 |
| 5 | 2 | 20.097 | 22/7:16.810 |
| 6 | 4 | 20.623 | 22/7:19.626 |
| 7 | 4 | 19.967 | 22/7:19.576 |
| 8 | 3 | 20.121 | 22/7:19.962 |
| 9 | 3 | 20.009 | 22/7:19.988 |
| 10 | 2 | 19.301 | 22/7:18.451 |
| 11 | 2 | 19.617 | 22/7:17.826 |
| 12 | 3 | 21.278 | 21/7:00.334 |
| 13 | 3 | 18.969 | 22/7:18.578 |
| 14 | 3 | 19.657 | 22/7:18.141 |
| 15 | 3 | 19.678 | 22/7:17.793 |
| 16 | 3 | 21.133 | 22/7:19.488 |
| 17 | 3 | 20.914 | 21/7:00.670 |
| 18 | 3 | 19.434 | 22/7:19.971 |
| 19 | 3 | 19.812 | 22/7:19.755 |
| 20 | 2 | 21.340 | 21/7:01.184 |
| 21 | 2 | 19.730 | 21/7:00.858 |