| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.740 | 20/6:14.800 |
| 2 | 1 | 18.110 | 20/6:08.500 |
| 3 | 1 | 18.110 | 20/6:06.400 |
| 4 | 1 | 18.410 | 20/6:06.850 |
| 5 | 1 | 18.630 | 20/6:08.000 |
| 6 | 1 | 18.620 | 20/6:08.733 |
| 7 | 1 | 18.600 | 20/6:09.200 |
| 8 | 1 | 19.300 | 20/6:11.300 |
| 9 | 1 | 19.380 | 20/6:13.111 |
| 10 | 1 | 18.890 | 20/6:13.580 |
| 11 | 1 | 22.780 | 19/6:01.985 |
| 12 | 1 | 18.620 | 19/6:01.301 |
| 13 | 1 | 17.890 | 20/6:18.585 |
| 14 | 1 | 18.050 | 20/6:17.329 |
| 15 | 1 | 18.150 | 20/6:16.373 |
| 16 | 1 | 19.150 | 20/6:16.788 |
| 17 | 1 | 19.160 | 20/6:17.165 |
| 18 | 1 | 18.290 | 20/6:16.533 |
| 19 | 1 | 18.120 | 20/6:15.789 |
| 20 | 1 | 17.830 | 20/6:14.830 |