| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 17.366 | 21/6:04.686 |
| 2 | 3 | 17.564 | 21/6:06.765 |
| 3 | 3 | 17.764 | 21/6:08.858 |
| 4 | 2 | 18.115 | 21/6:11.747 |
| 5 | 2 | 17.520 | 21/6:10.982 |
| 6 | 2 | 18.800 | 21/6:14.951 |
| 7 | 2 | 17.885 | 21/6:15.042 |
| 8 | 2 | 17.369 | 21/6:13.755 |
| 9 | 3 | 17.485 | 21/6:13.025 |
| 10 | 2 | 17.615 | 21/6:12.714 |
| 11 | 2 | 17.897 | 21/6:12.998 |
| 12 | 2 | 17.465 | 21/6:12.479 |
| 13 | 3 | 18.655 | 21/6:13.962 |
| 14 | 2 | 17.502 | 21/6:13.503 |
| 15 | 4 | 18.129 | 21/6:13.983 |
| 16 | 4 | 18.903 | 21/6:15.420 |
| 17 | 3 | 17.887 | 21/6:15.432 |
| 18 | 3 | 18.537 | 21/6:16.201 |
| 19 | 2 | 19.308 | 21/6:17.741 |
| 20 | 2 | 17.819 | 21/6:17.564 |
| 21 | 2 | 17.932 | 21/6:17.517 |