| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.391 | 20/6:07.820 |
| 2 | 2 | 19.255 | 20/6:16.460 |
| 3 | 1 | 18.360 | 20/6:13.373 |
| 4 | 1 | 18.125 | 20/6:10.655 |
| 5 | 2 | 18.719 | 20/6:11.400 |
| 6 | 2 | 18.751 | 20/6:12.003 |
| 7 | 1 | 18.247 | 20/6:10.994 |
| 8 | 1 | 18.334 | 20/6:10.455 |
| 9 | 1 | 19.091 | 20/6:11.718 |
| 10 | 2 | 19.902 | 20/6:14.350 |
| 11 | 2 | 21.035 | 20/6:18.564 |
| 12 | 2 | 19.741 | 19/6:00.922 |
| 13 | 2 | 19.150 | 19/6:01.148 |
| 14 | 2 | 21.401 | 19/6:04.396 |
| 15 | 2 | 18.323 | 19/6:03.312 |
| 16 | 2 | 19.054 | 19/6:03.231 |
| 17 | 2 | 18.636 | 19/6:02.693 |
| 18 | 2 | 18.694 | 19/6:02.276 |
| 19 | 2 | 27.597 | 19/6:10.806 |