| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 18.277 | 20/6:05.540 |
| 2 | 4 | 18.316 | 20/6:05.930 |
| 3 | 3 | 18.298 | 20/6:05.940 |
| 4 | 3 | 18.386 | 20/6:06.385 |
| 5 | 3 | 19.821 | 20/6:12.392 |
| 6 | 4 | 18.825 | 20/6:13.077 |
| 7 | 4 | 21.813 | 19/6:02.998 |
| 8 | 3 | 22.576 | 19/6:11.241 |
| 9 | 3 | 23.588 | 19/6:19.789 |
| 10 | 3 | 24.555 | 18/6:08.019 |
| 11 | 3 | 19.486 | 18/6:06.449 |
| 12 | 3 | 18.759 | 18/6:04.050 |
| 13 | 3 | 22.759 | 18/6:07.559 |
| 14 | 3 | 19.266 | 18/6:06.075 |
| 15 | 3 | 18.572 | 18/6:03.956 |
| 16 | 3 | 23.578 | 18/6:07.734 |
| 17 | 4 | 25.675 | 18/6:13.288 |
| 18 | 4 | 17.942 | 18/6:10.492 |