| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 17.184 | 21/6:00.864 |
| 2 | 1 | 17.335 | 21/6:02.450 |
| 3 | 2 | 16.921 | 21/6:00.080 |
| 4 | 2 | 18.778 | 21/6:08.644 |
| 5 | 2 | 18.444 | 21/6:12.380 |
| 6 | 2 | 17.462 | 21/6:11.434 |
| 7 | 2 | 17.591 | 21/6:11.145 |
| 8 | 2 | 18.196 | 21/6:12.516 |
| 9 | 2 | 19.213 | 21/6:15.956 |
| 10 | 2 | 17.575 | 21/6:15.268 |
| 11 | 3 | 17.761 | 21/6:15.060 |
| 12 | 3 | 17.729 | 21/6:14.831 |
| 13 | 3 | 18.059 | 21/6:15.170 |
| 14 | 3 | 18.552 | 21/6:16.200 |
| 15 | 3 | 18.370 | 21/6:16.838 |
| 16 | 4 | 17.826 | 21/6:16.682 |
| 17 | 3 | 16.980 | 21/6:15.500 |
| 18 | 3 | 20.009 | 21/6:17.983 |
| 19 | 3 | 17.417 | 21/6:17.339 |
| 20 | 3 | 17.502 | 21/6:16.849 |
| 21 | 3 | 17.587 | 21/6:16.491 |