| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 18.493 | 20/6:09.860 |
| 2 | 4 | 18.896 | 20/6:13.890 |
| 3 | 4 | 18.666 | 20/6:13.700 |
| 4 | 4 | 19.062 | 20/6:15.585 |
| 5 | 3 | 18.777 | 20/6:15.576 |
| 6 | 3 | 18.487 | 20/6:14.603 |
| 7 | 3 | 18.615 | 20/6:14.274 |
| 8 | 3 | 18.569 | 20/6:13.912 |
| 9 | 3 | 18.358 | 20/6:13.162 |
| 10 | 3 | 18.573 | 20/6:12.992 |
| 11 | 3 | 18.461 | 20/6:12.649 |
| 12 | 3 | 18.283 | 20/6:12.067 |
| 13 | 3 | 17.983 | 20/6:11.112 |
| 14 | 3 | 18.403 | 20/6:10.894 |
| 15 | 3 | 18.459 | 20/6:10.780 |
| 16 | 3 | 18.508 | 20/6:10.741 |
| 17 | 4 | 18.488 | 20/6:10.684 |
| 18 | 3 | 18.053 | 20/6:10.149 |
| 19 | 4 | 18.727 | 20/6:10.380 |
| 20 | 4 | 18.584 | 20/6:10.445 |