| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 17.348 | 21/6:04.308 |
| 2 | 2 | 17.115 | 21/6:01.861 |
| 3 | 2 | 16.982 | 21/6:00.115 |
| 4 | 2 | 17.286 | 21/6:00.838 |
| 5 | 2 | 17.256 | 21/6:01.145 |
| 6 | 2 | 17.467 | 21/6:02.089 |
| 7 | 2 | 17.935 | 21/6:04.167 |
| 8 | 2 | 17.549 | 21/6:04.712 |
| 9 | 1 | 17.228 | 21/6:04.387 |
| 10 | 2 | 18.970 | 21/6:07.786 |
| 11 | 2 | 17.506 | 21/6:07.771 |
| 12 | 2 | 17.830 | 21/6:08.326 |
| 13 | 2 | 17.540 | 21/6:08.327 |
| 14 | 2 | 17.911 | 21/6:08.884 |
| 15 | 2 | 17.223 | 21/6:08.404 |
| 16 | 2 | 21.447 | 21/6:13.528 |
| 17 | 2 | 18.213 | 21/6:14.054 |
| 18 | 2 | 18.583 | 21/6:14.954 |
| 19 | 2 | 18.261 | 21/6:15.403 |
| 20 | 2 | 17.527 | 21/6:15.036 |
| 21 | 2 | 18.294 | 21/6:15.471 |