| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 18.192 | 20/6:03.840 |
| 2 | 1 | 17.806 | 21/6:17.979 |
| 3 | 1 | 17.935 | 21/6:17.531 |
| 4 | 1 | 18.231 | 20/6:00.820 |
| 5 | 1 | 18.270 | 20/6:01.736 |
| 6 | 1 | 17.671 | 20/6:00.350 |
| 7 | 1 | 17.993 | 20/6:00.280 |
| 8 | 1 | 18.115 | 20/6:00.533 |
| 9 | 1 | 20.116 | 20/6:05.176 |
| 10 | 1 | 19.284 | 20/6:07.226 |
| 11 | 3 | 19.551 | 20/6:09.389 |
| 12 | 1 | 18.320 | 20/6:09.140 |
| 13 | 3 | 19.326 | 20/6:10.477 |
| 14 | 2 | 17.981 | 20/6:09.701 |
| 15 | 2 | 17.883 | 20/6:08.899 |
| 16 | 1 | 17.648 | 20/6:07.903 |
| 17 | 1 | 17.843 | 20/6:07.253 |
| 18 | 1 | 18.161 | 20/6:07.029 |
| 19 | 1 | 18.368 | 20/6:07.046 |
| 20 | 1 | 20.161 | 20/6:08.855 |