| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.265 | 20/6:05.300 |
| 2 | 1 | 18.126 | 20/6:03.910 |
| 3 | 2 | 19.453 | 20/6:12.293 |
| 4 | 1 | 17.766 | 20/6:08.050 |
| 5 | 1 | 18.042 | 20/6:06.608 |
| 6 | 1 | 17.763 | 20/6:04.717 |
| 7 | 1 | 18.270 | 20/6:04.814 |
| 8 | 1 | 18.006 | 20/6:04.228 |
| 9 | 1 | 18.249 | 20/6:04.311 |
| 10 | 2 | 20.287 | 20/6:08.454 |
| 11 | 1 | 17.477 | 20/6:06.735 |
| 12 | 1 | 18.410 | 20/6:06.857 |
| 13 | 1 | 19.596 | 20/6:08.785 |
| 14 | 2 | 23.600 | 20/6:16.157 |
| 15 | 2 | 19.151 | 20/6:16.615 |
| 16 | 2 | 19.280 | 20/6:17.176 |
| 17 | 2 | 18.418 | 20/6:16.658 |
| 18 | 2 | 22.680 | 19/6:01.886 |
| 19 | 2 | 22.595 | 19/6:05.434 |