| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.007 | 20/6:00.140 |
| 2 | 1 | 18.192 | 20/6:01.990 |
| 3 | 1 | 18.377 | 20/6:03.840 |
| 4 | 1 | 17.837 | 20/6:02.065 |
| 5 | 1 | 18.133 | 20/6:02.184 |
| 6 | 1 | 18.744 | 20/6:04.300 |
| 7 | 1 | 18.493 | 20/6:05.094 |
| 8 | 1 | 18.395 | 20/6:05.445 |
| 9 | 1 | 18.464 | 20/6:05.871 |
| 10 | 1 | 18.330 | 20/6:05.944 |
| 11 | 1 | 18.105 | 20/6:05.595 |
| 12 | 1 | 18.160 | 20/6:05.395 |
| 13 | 1 | 18.504 | 20/6:05.755 |
| 14 | 1 | 18.854 | 20/6:06.564 |
| 15 | 1 | 18.602 | 20/6:06.929 |
| 16 | 1 | 18.211 | 20/6:06.760 |
| 17 | 2 | 20.077 | 20/6:08.806 |
| 18 | 2 | 18.434 | 20/6:08.799 |
| 19 | 2 | 18.638 | 20/6:09.007 |
| 20 | 2 | 18.577 | 20/6:09.134 |