| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 20.091 | N/A |
| 2 | 2 | 20.277 | 21/7:05.631 |
| 3 | 2 | 20.278 | 21/7:05.641 |
| 4 | 2 | 20.345 | 21/7:06.091 |
| 5 | 2 | 19.765 | 21/7:03.416 |
| 6 | 2 | 19.788 | 21/7:01.903 |
| 7 | 2 | 25.507 | 21/7:19.957 |
| 8 | 3 | 27.133 | 20/7:15.629 |
| 9 | 2 | 21.008 | 20/7:13.580 |
| 10 | 2 | 20.402 | 20/7:10.708 |
| 11 | 2 | 19.805 | 20/7:07.276 |
| 12 | 2 | 20.003 | 20/7:04.081 |
| 13 | 2 | 19.555 | 20/7:02.045 |
| 14 | 2 | 20.457 | 20/7:01.024 |
| 15 | 2 | 19.809 | 21/7:20.279 |
| 16 | 2 | 23.757 | 20/7:02.750 |
| 17 | 2 | 19.790 | 20/7:01.084 |
| 18 | 2 | 20.334 | 20/7:00.223 |
| 19 | 2 | 19.869 | 21/7:19.959 |
| 20 | 2 | 19.641 | 21/7:18.536 |
| 21 | 2 | 21.650 | 21/7:19.264 |