| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 6 | 34.354 | N/A |
| 2 | 6 | 24.892 | 19/8:02.041 |
| 3 | 4 | 24.755 | 19/8:01.177 |
| 4 | 4 | 24.962 | 19/8:02.008 |
| 5 | 4 | 25.737 | 19/8:05.911 |
| 6 | 3 | 24.555 | 19/8:03.997 |
| 7 | 3 | 24.087 | 19/8:01.318 |
| 8 | 4 | 25.277 | 19/8:02.464 |
| 9 | 4 | 24.668 | 19/8:01.953 |
| 10 | 4 | 25.131 | 19/8:02.482 |
| 11 | 3 | 24.305 | 19/8:01.418 |
| 12 | 4 | 28.752 | 19/8:07.824 |
| 13 | 4 | 24.596 | 19/8:06.929 |
| 14 | 4 | 27.608 | 19/8:10.342 |
| 15 | 4 | 24.180 | 19/8:08.860 |
| 16 | 4 | 23.790 | 19/8:07.108 |
| 17 | 4 | 28.148 | 19/8:10.477 |
| 18 | 4 | 26.179 | 19/8:11.365 |
| 19 | 4 | 24.676 | 19/8:10.652 |