| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 18.468 | 20/6:09.360 |
| 2 | 3 | 18.880 | 20/6:13.480 |
| 3 | 3 | 18.467 | 20/6:12.100 |
| 4 | 3 | 19.026 | 20/6:14.205 |
| 5 | 3 | 18.369 | 20/6:12.840 |
| 6 | 3 | 18.669 | 20/6:12.930 |
| 7 | 3 | 19.228 | 20/6:14.591 |
| 8 | 3 | 18.883 | 20/6:14.975 |
| 9 | 3 | 19.363 | 20/6:16.340 |
| 10 | 3 | 18.675 | 20/6:16.056 |
| 11 | 3 | 18.839 | 20/6:16.122 |
| 12 | 3 | 18.594 | 20/6:15.768 |
| 13 | 3 | 18.645 | 20/6:15.548 |
| 14 | 3 | 18.671 | 20/6:15.396 |
| 15 | 3 | 18.754 | 20/6:15.375 |
| 16 | 3 | 18.505 | 20/6:15.045 |
| 17 | 3 | 18.838 | 20/6:15.146 |
| 18 | 3 | 18.790 | 20/6:15.182 |
| 19 | 3 | 18.790 | 20/6:15.215 |
| 20 | 3 | 18.452 | 20/6:14.906 |