| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.471 | 18/6:08.478 |
| 2 | 4 | 19.770 | 18/6:02.169 |
| 3 | 4 | 20.001 | 18/6:01.452 |
| 4 | 3 | 20.519 | 18/6:03.424 |
| 5 | 3 | 20.345 | 18/6:03.982 |
| 6 | 3 | 20.065 | 18/6:03.513 |
| 7 | 3 | 20.116 | 18/6:03.309 |
| 8 | 5 | 20.451 | 18/6:03.910 |
| 9 | 5 | 20.393 | 18/6:04.262 |
| 10 | 4 | 20.351 | 18/6:04.468 |
| 11 | 4 | 20.333 | 18/6:04.606 |
| 12 | 4 | 20.453 | 18/6:04.902 |
| 13 | 5 | 20.243 | 18/6:04.861 |
| 14 | 5 | 20.678 | 18/6:05.386 |
| 15 | 5 | 20.296 | 18/6:05.382 |
| 16 | 5 | 20.714 | 18/6:05.849 |
| 17 | 5 | 20.487 | 18/6:06.020 |
| 18 | 5 | 20.582 | 18/6:06.268 |