| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 18.018 | 20/6:00.360 |
| 2 | 2 | 18.395 | 20/6:04.130 |
| 3 | 2 | 18.216 | 20/6:04.193 |
| 4 | 2 | 17.467 | 20/6:00.480 |
| 5 | 1 | 19.255 | 20/6:05.404 |
| 6 | 1 | 18.025 | 20/6:04.587 |
| 7 | 1 | 18.045 | 20/6:04.060 |
| 8 | 2 | 17.638 | 20/6:02.647 |
| 9 | 2 | 19.407 | 20/6:05.480 |
| 10 | 2 | 18.353 | 20/6:05.638 |
| 11 | 2 | 17.686 | 20/6:04.555 |
| 12 | 2 | 17.657 | 20/6:03.603 |
| 13 | 2 | 27.384 | 20/6:17.763 |
| 14 | 2 | 17.668 | 20/6:16.020 |
| 15 | 2 | 17.556 | 20/6:14.360 |
| 16 | 2 | 17.124 | 20/6:12.368 |
| 17 | 2 | 18.240 | 20/6:11.922 |
| 18 | 2 | 18.255 | 20/6:11.543 |
| 19 | 2 | 18.629 | 20/6:11.598 |
| 20 | 2 | 18.241 | 20/6:11.259 |