| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 18.269 | 20/6:05.380 |
| 2 | 5 | 18.143 | 20/6:04.120 |
| 3 | 5 | 18.367 | 20/6:05.193 |
| 4 | 4 | 18.155 | 20/6:04.670 |
| 5 | 4 | 18.378 | 20/6:05.248 |
| 6 | 4 | 17.965 | 20/6:04.257 |
| 7 | 4 | 18.682 | 20/6:05.597 |
| 8 | 4 | 18.414 | 20/6:05.933 |
| 9 | 4 | 18.487 | 20/6:06.356 |
| 10 | 4 | 18.549 | 20/6:06.818 |
| 11 | 4 | 18.748 | 20/6:07.558 |
| 12 | 4 | 18.049 | 20/6:07.010 |
| 13 | 4 | 18.277 | 20/6:06.897 |
| 14 | 4 | 18.886 | 20/6:07.670 |
| 15 | 4 | 19.827 | 20/6:09.595 |
| 16 | 4 | 18.288 | 20/6:09.355 |
| 17 | 4 | 18.545 | 20/6:09.446 |
| 18 | 4 | 18.099 | 20/6:09.031 |
| 19 | 4 | 19.190 | 20/6:09.808 |
| 20 | 3 | 18.962 | 20/6:10.280 |