| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 18.783 | 20/6:15.660 |
| 2 | 3 | 18.145 | 20/6:09.280 |
| 3 | 3 | 19.189 | 20/6:14.113 |
| 4 | 3 | 19.234 | 20/6:16.755 |
| 5 | 3 | 18.946 | 20/6:17.188 |
| 6 | 3 | 18.919 | 20/6:17.387 |
| 7 | 3 | 19.273 | 20/6:18.540 |
| 8 | 4 | 19.558 | 19/6:01.112 |
| 9 | 4 | 19.629 | 19/6:02.427 |
| 10 | 4 | 18.775 | 19/6:01.857 |
| 11 | 4 | 19.461 | 19/6:02.575 |
| 12 | 4 | 19.581 | 19/6:03.364 |
| 13 | 4 | 19.453 | 19/6:03.844 |
| 14 | 4 | 19.868 | 19/6:04.819 |
| 15 | 4 | 19.289 | 19/6:04.930 |
| 16 | 4 | 18.980 | 19/6:04.661 |
| 17 | 4 | 18.999 | 19/6:04.445 |
| 18 | 4 | 19.078 | 19/6:04.336 |
| 19 | 4 | 19.646 | 19/6:04.806 |