| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 21.874 | N/A |
| 2 | 2 | 21.692 | 17/6:08.946 |
| 3 | 2 | 22.023 | 17/6:11.594 |
| 4 | 2 | 20.174 | 17/6:02.615 |
| 5 | 2 | 20.352 | 18/6:19.898 |
| 6 | 1 | 18.848 | 18/6:12.376 |
| 7 | 1 | 18.186 | 18/6:05.486 |
| 8 | 2 | 21.559 | 18/6:08.756 |
| 9 | 2 | 19.510 | 18/6:06.855 |
| 10 | 2 | 21.307 | 18/6:08.770 |
| 11 | 2 | 21.454 | 18/6:10.552 |
| 12 | 2 | 19.196 | 18/6:08.521 |
| 13 | 1 | 18.773 | 18/6:06.228 |
| 14 | 1 | 20.380 | 18/6:06.390 |
| 15 | 1 | 21.935 | 18/6:08.417 |
| 16 | 2 | 19.257 | 18/6:07.139 |
| 17 | 2 | 21.311 | 18/6:08.203 |
| 18 | 2 | 18.445 | 18/6:06.276 |