| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 21.212 | 20/7:04.240 |
| 2 | 2 | 21.336 | 20/7:05.480 |
| 3 | 1 | 21.852 | 20/7:09.333 |
| 4 | 2 | 21.792 | 20/7:10.960 |
| 5 | 2 | 21.622 | 20/7:11.256 |
| 6 | 2 | 20.608 | 20/7:08.073 |
| 7 | 2 | 19.846 | 20/7:03.623 |
| 8 | 2 | 22.265 | 20/7:06.333 |
| 9 | 2 | 20.462 | 20/7:04.433 |
| 10 | 2 | 23.617 | 20/7:09.224 |
| 11 | 2 | 20.563 | 20/7:07.591 |
| 12 | 2 | 19.306 | 20/7:04.135 |
| 13 | 2 | 19.970 | 20/7:02.232 |
| 14 | 2 | 19.992 | 20/7:00.633 |
| 15 | 2 | 19.920 | 21/7:20.108 |
| 16 | 2 | 20.258 | 21/7:19.190 |
| 17 | 2 | 21.279 | 21/7:19.641 |
| 18 | 2 | 23.108 | 20/7:01.120 |
| 19 | 2 | 20.213 | 20/7:00.233 |
| 20 | 2 | 20.807 | 20/7:00.028 |