| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 20.541 | 18/6:09.738 |
| 2 | 2 | 20.665 | 18/6:10.854 |
| 3 | 2 | 20.565 | 18/6:10.626 |
| 4 | 1 | 20.788 | 18/6:11.515 |
| 5 | 1 | 20.517 | 18/6:11.074 |
| 6 | 1 | 21.075 | 18/6:12.453 |
| 7 | 1 | 20.818 | 18/6:12.777 |
| 8 | 1 | 20.993 | 18/6:13.414 |
| 9 | 1 | 20.774 | 18/6:13.472 |
| 10 | 2 | 21.004 | 18/6:13.932 |
| 11 | 2 | 20.587 | 18/6:13.626 |
| 12 | 2 | 20.718 | 18/6:13.567 |
| 13 | 2 | 20.759 | 18/6:13.575 |
| 14 | 2 | 20.856 | 18/6:13.706 |
| 15 | 2 | 20.868 | 18/6:13.834 |
| 16 | 1 | 20.539 | 18/6:13.575 |
| 17 | 1 | 20.586 | 18/6:13.397 |
| 18 | 1 | 20.404 | 18/6:13.057 |