| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 20.947 | 21/7:19.887 |
| 2 | 2 | 21.253 | 20/7:02.000 |
| 3 | 2 | 21.459 | 20/7:04.393 |
| 4 | 3 | 21.017 | 20/7:03.380 |
| 5 | 3 | 22.555 | 20/7:08.924 |
| 6 | 4 | 25.777 | 19/7:01.192 |
| 7 | 4 | 20.287 | 20/7:17.986 |
| 8 | 4 | 21.817 | 20/7:17.780 |
| 9 | 4 | 23.478 | 20/7:21.311 |
| 10 | 4 | 21.089 | 20/7:19.358 |
| 11 | 4 | 21.790 | 20/7:19.035 |
| 12 | 4 | 20.756 | 20/7:17.042 |
| 13 | 4 | 20.418 | 20/7:14.835 |
| 14 | 4 | 21.435 | 20/7:14.397 |
| 15 | 4 | 20.669 | 20/7:12.996 |
| 16 | 4 | 21.644 | 20/7:12.989 |
| 17 | 4 | 21.048 | 20/7:12.281 |
| 18 | 4 | 22.126 | 20/7:12.850 |
| 19 | 4 | 22.672 | 20/7:13.934 |
| 20 | 4 | 24.441 | 20/7:16.678 |