| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 17.954 | N/A |
| 2 | 2 | 17.190 | 21/6:01.754 |
| 3 | 2 | 18.714 | 21/6:16.994 |
| 4 | 1 | 16.687 | 21/6:08.560 |
| 5 | 1 | 19.476 | 20/6:00.272 |
| 6 | 1 | 16.562 | 21/6:12.047 |
| 7 | 1 | 17.501 | 21/6:11.720 |
| 8 | 1 | 17.020 | 21/6:09.811 |
| 9 | 1 | 18.645 | 21/6:12.441 |
| 10 | 2 | 19.384 | 21/6:16.129 |
| 11 | 1 | 19.148 | 20/6:00.575 |
| 12 | 1 | 18.310 | 20/6:01.054 |
| 13 | 1 | 16.412 | 21/6:16.369 |
| 14 | 1 | 17.078 | 21/6:15.072 |
| 15 | 1 | 18.909 | 21/6:16.576 |
| 16 | 1 | 16.910 | 21/6:15.215 |
| 17 | 1 | 16.564 | 21/6:13.591 |
| 18 | 1 | 18.886 | 21/6:14.890 |
| 19 | 1 | 18.210 | 21/6:15.294 |
| 20 | 1 | 18.121 | 21/6:15.561 |
| 21 | 1 | 16.804 | 21/6:14.485 |