| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 5 | 18.192 | 20/6:03.840 |
| 2 | 5 | 18.437 | 20/6:06.290 |
| 3 | 4 | 18.296 | 20/6:06.167 |
| 4 | 6 | 18.690 | 20/6:08.075 |
| 5 | 4 | 18.301 | 20/6:07.664 |
| 6 | 5 | 19.475 | 20/6:11.303 |
| 7 | 5 | 18.955 | 20/6:12.417 |
| 8 | 5 | 18.477 | 20/6:12.058 |
| 9 | 5 | 17.763 | 20/6:10.191 |
| 10 | 6 | 19.005 | 20/6:11.182 |
| 11 | 6 | 19.933 | 20/6:13.680 |
| 12 | 5 | 18.520 | 20/6:13.407 |
| 13 | 5 | 18.760 | 20/6:13.545 |
| 14 | 5 | 19.117 | 20/6:14.173 |
| 15 | 5 | 18.654 | 20/6:14.100 |
| 16 | 5 | 18.587 | 20/6:13.952 |
| 17 | 5 | 18.685 | 20/6:13.938 |
| 18 | 5 | 19.990 | 20/6:15.374 |
| 19 | 4 | 19.366 | 20/6:16.003 |
| 20 | 4 | 18.931 | 20/6:16.134 |