| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.242 | 20/6:04.840 |
| 2 | 1 | 18.185 | 20/6:04.270 |
| 3 | 1 | 18.068 | 20/6:03.300 |
| 4 | 1 | 19.101 | 20/6:07.980 |
| 5 | 1 | 18.940 | 20/6:10.144 |
| 6 | 1 | 18.055 | 20/6:08.637 |
| 7 | 1 | 18.232 | 20/6:08.066 |
| 8 | 2 | 19.728 | 20/6:11.378 |
| 9 | 1 | 18.112 | 20/6:10.362 |
| 10 | 2 | 23.219 | 19/6:00.776 |
| 11 | 2 | 18.593 | 19/6:00.093 |
| 12 | 2 | 18.145 | 20/6:17.700 |
| 13 | 1 | 19.132 | 20/6:18.080 |
| 14 | 1 | 18.236 | 20/6:17.126 |
| 15 | 1 | 18.368 | 20/6:16.475 |
| 16 | 1 | 19.034 | 20/6:16.737 |
| 17 | 2 | 19.001 | 20/6:16.931 |
| 18 | 3 | 21.478 | 19/6:00.862 |
| 19 | 3 | 18.075 | 20/6:18.888 |
| 20 | 3 | 21.122 | 20/6:21.066 |