| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 20.157 | 18/6:02.826 |
| 2 | 2 | 20.232 | 18/6:03.501 |
| 3 | 2 | 19.384 | 19/6:18.562 |
| 4 | 2 | 19.406 | 19/6:16.100 |
| 5 | 3 | 19.434 | 19/6:14.729 |
| 6 | 3 | 23.006 | 18/6:04.857 |
| 7 | 3 | 18.569 | 18/6:00.483 |
| 8 | 2 | 21.036 | 18/6:02.754 |
| 9 | 2 | 18.878 | 18/6:00.204 |
| 10 | 2 | 19.698 | 19/6:19.620 |
| 11 | 3 | 23.232 | 18/6:04.961 |
| 12 | 4 | 20.446 | 18/6:05.217 |
| 13 | 4 | 22.438 | 18/6:08.191 |
| 14 | 4 | 21.959 | 18/6:10.125 |
| 15 | 4 | 22.976 | 18/6:13.021 |
| 16 | 4 | 19.856 | 18/6:12.045 |
| 17 | 4 | 21.912 | 18/6:13.361 |
| 18 | 4 | 19.780 | 18/6:12.399 |