| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.126 | 20/6:02.520 |
| 2 | 1 | 18.075 | 20/6:02.010 |
| 3 | 1 | 18.170 | 20/6:02.473 |
| 4 | 1 | 18.385 | 20/6:03.780 |
| 5 | 1 | 18.552 | 20/6:05.232 |
| 6 | 2 | 19.060 | 20/6:07.893 |
| 7 | 2 | 19.002 | 20/6:09.629 |
| 8 | 2 | 18.363 | 20/6:09.332 |
| 9 | 2 | 18.093 | 20/6:08.502 |
| 10 | 2 | 17.981 | 20/6:07.614 |
| 11 | 2 | 18.969 | 20/6:08.684 |
| 12 | 2 | 18.637 | 20/6:09.022 |
| 13 | 2 | 18.706 | 20/6:09.414 |
| 14 | 2 | 18.935 | 20/6:10.077 |
| 15 | 2 | 18.853 | 20/6:10.543 |
| 16 | 2 | 18.147 | 20/6:10.067 |
| 17 | 2 | 19.656 | 20/6:11.424 |
| 18 | 2 | 18.428 | 20/6:11.264 |
| 19 | 2 | 18.086 | 20/6:10.762 |
| 20 | 2 | 18.226 | 20/6:10.450 |