| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.109 | 20/6:02.180 |
| 2 | 1 | 18.464 | 20/6:05.730 |
| 3 | 1 | 18.744 | 20/6:08.780 |
| 4 | 1 | 18.473 | 20/6:08.950 |
| 5 | 2 | 19.690 | 20/6:13.920 |
| 6 | 2 | 19.138 | 20/6:15.393 |
| 7 | 2 | 18.275 | 20/6:13.980 |
| 8 | 2 | 18.222 | 20/6:12.788 |
| 9 | 2 | 19.269 | 20/6:14.187 |
| 10 | 2 | 19.616 | 20/6:16.000 |
| 11 | 2 | 18.872 | 20/6:16.131 |
| 12 | 2 | 18.903 | 20/6:16.292 |
| 13 | 2 | 18.144 | 20/6:15.260 |
| 14 | 2 | 18.232 | 20/6:14.501 |
| 15 | 2 | 18.517 | 20/6:14.224 |
| 16 | 2 | 19.981 | 20/6:15.811 |
| 17 | 2 | 18.929 | 20/6:15.974 |
| 18 | 2 | 18.462 | 20/6:15.600 |