| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.050 | 20/6:01.000 |
| 2 | 1 | 18.452 | 20/6:05.020 |
| 3 | 1 | 17.790 | 20/6:01.947 |
| 4 | 2 | 19.753 | 20/6:10.225 |
| 5 | 2 | 18.891 | 20/6:11.744 |
| 6 | 2 | 17.493 | 20/6:08.097 |
| 7 | 2 | 17.738 | 20/6:06.191 |
| 8 | 2 | 19.831 | 20/6:09.995 |
| 9 | 2 | 19.069 | 20/6:11.260 |
| 10 | 2 | 19.819 | 20/6:13.772 |
| 11 | 2 | 18.198 | 20/6:12.880 |
| 12 | 2 | 18.073 | 20/6:11.928 |
| 13 | 2 | 17.859 | 20/6:10.794 |
| 14 | 3 | 20.871 | 20/6:14.124 |
| 15 | 3 | 19.701 | 20/6:15.451 |
| 16 | 3 | 18.569 | 20/6:15.196 |
| 17 | 3 | 18.704 | 20/6:15.131 |
| 18 | 3 | 20.903 | 20/6:17.516 |
| 19 | 3 | 18.244 | 20/6:16.851 |
| 20 | 3 | 20.272 | 20/6:18.280 |