| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 18.559 | 20/6:11.180 |
| 2 | 2 | 18.372 | 20/6:09.310 |
| 3 | 1 | 18.700 | 20/6:10.873 |
| 4 | 2 | 18.066 | 20/6:08.485 |
| 5 | 2 | 18.394 | 20/6:08.364 |
| 6 | 2 | 18.238 | 20/6:07.763 |
| 7 | 2 | 18.393 | 20/6:07.777 |
| 8 | 2 | 18.129 | 20/6:07.127 |
| 9 | 2 | 18.368 | 20/6:07.153 |
| 10 | 1 | 18.345 | 20/6:07.128 |
| 11 | 2 | 19.505 | 20/6:09.216 |
| 12 | 2 | 18.426 | 20/6:09.158 |
| 13 | 2 | 18.405 | 20/6:09.077 |
| 14 | 1 | 19.024 | 20/6:09.891 |
| 15 | 1 | 18.807 | 20/6:10.308 |
| 16 | 1 | 19.205 | 20/6:11.170 |
| 17 | 1 | 18.450 | 20/6:11.042 |
| 18 | 1 | 19.279 | 20/6:11.850 |
| 19 | 1 | 18.439 | 20/6:11.688 |
| 20 | 1 | 18.351 | 20/6:11.455 |