| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 18.975 | 19/6:00.525 |
| 2 | 2 | 18.380 | 20/6:13.055 |
| 3 | 2 | 18.415 | 20/6:11.008 |
| 4 | 2 | 18.348 | 20/6:10.059 |
| 5 | 2 | 18.406 | 20/6:10.096 |
| 6 | 2 | 18.320 | 20/6:09.048 |
| 7 | 2 | 18.395 | 20/6:09.254 |
| 8 | 2 | 18.527 | 20/6:09.415 |
| 9 | 2 | 18.583 | 20/6:09.664 |
| 10 | 2 | 18.638 | 20/6:09.974 |
| 11 | 2 | 18.754 | 20/6:10.438 |
| 12 | 2 | 18.799 | 20/6:10.009 |
| 13 | 2 | 18.565 | 20/6:10.930 |
| 14 | 2 | 19.367 | 20/6:12.102 |
| 15 | 2 | 18.844 | 20/6:12.421 |
| 16 | 3 | 19.724 | 20/6:13.008 |
| 17 | 3 | 18.844 | 20/6:13.981 |
| 18 | 3 | 19.100 | 20/6:14.426 |
| 19 | 3 | 19.353 | 20/6:15.091 |
| 20 | 4 | 19.716 | 20/6:16.053 |