| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 21.479 | N/A |
| 2 | 3 | 18.050 | 20/6:04.429 |
| 3 | 3 | 18.771 | 20/6:11.278 |
| 4 | 3 | 18.653 | 20/6:12.814 |
| 5 | 3 | 18.387 | 20/6:12.318 |
| 6 | 4 | 18.977 | 20/6:14.263 |
| 7 | 4 | 19.077 | 20/6:15.876 |
| 8 | 4 | 20.256 | 19/6:01.347 |
| 9 | 4 | 18.067 | 20/6:18.294 |
| 10 | 3 | 18.920 | 20/6:18.590 |
| 11 | 3 | 18.990 | 19/6:00.145 |
| 12 | 3 | 19.311 | 19/6:00.957 |
| 13 | 3 | 18.984 | 19/6:01.143 |
| 14 | 3 | 18.237 | 19/6:00.266 |
| 15 | 3 | 18.988 | 19/6:00.480 |
| 16 | 3 | 19.108 | 19/6:00.810 |
| 17 | 3 | 18.992 | 19/6:00.968 |
| 18 | 3 | 18.757 | 19/6:00.858 |
| 19 | 4 | 19.728 | 19/6:01.732 |