| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.384 | 18/6:06.912 |
| 2 | 3 | 20.135 | 18/6:04.671 |
| 3 | 3 | 21.144 | 18/6:09.978 |
| 4 | 3 | 20.490 | 18/6:09.689 |
| 5 | 3 | 20.085 | 18/6:08.057 |
| 6 | 3 | 20.786 | 18/6:09.072 |
| 7 | 3 | 19.755 | 18/6:07.146 |
| 8 | 3 | 21.438 | 18/6:09.488 |
| 9 | 3 | 20.971 | 18/6:10.376 |
| 10 | 3 | 20.868 | 18/6:10.901 |
| 11 | 3 | 20.373 | 18/6:10.520 |
| 12 | 3 | 22.649 | 18/6:13.617 |
| 13 | 3 | 20.563 | 18/6:13.349 |
| 14 | 3 | 22.668 | 18/6:15.826 |
| 15 | 3 | 20.711 | 18/6:15.624 |
| 16 | 3 | 20.779 | 18/6:15.524 |
| 17 | 3 | 21.460 | 18/6:16.157 |
| 18 | 3 | 20.511 | 18/6:15.770 |