| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 17.467 | 21/6:06.807 |
| 2 | 1 | 17.448 | 21/6:06.608 |
| 3 | 2 | 18.261 | 21/6:12.232 |
| 4 | 2 | 17.771 | 21/6:12.472 |
| 5 | 2 | 18.136 | 21/6:14.149 |
| 6 | 2 | 18.505 | 21/6:16.558 |
| 7 | 2 | 17.579 | 21/6:15.501 |
| 8 | 2 | 21.317 | 20/6:06.210 |
| 9 | 2 | 17.499 | 20/6:04.407 |
| 10 | 2 | 18.786 | 20/6:05.538 |
| 11 | 2 | 17.251 | 20/6:03.673 |
| 12 | 3 | 20.955 | 20/6:08.292 |
| 13 | 3 | 19.734 | 20/6:10.322 |
| 14 | 3 | 18.268 | 20/6:09.967 |
| 15 | 3 | 17.666 | 20/6:08.857 |
| 16 | 3 | 18.467 | 20/6:08.888 |
| 17 | 3 | 18.273 | 20/6:08.686 |
| 18 | 3 | 19.468 | 20/6:09.834 |
| 19 | 3 | 19.093 | 20/6:10.467 |
| 20 | 3 | 18.357 | 20/6:10.301 |