| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 18.138 | 20/6:02.760 |
| 2 | 3 | 17.813 | 21/6:17.486 |
| 3 | 3 | 17.654 | 21/6:15.235 |
| 4 | 2 | 18.017 | 21/6:16.015 |
| 5 | 2 | 18.477 | 20/6:00.396 |
| 6 | 2 | 17.977 | 20/6:00.253 |
| 7 | 2 | 18.431 | 20/6:01.449 |
| 8 | 2 | 18.198 | 20/6:01.763 |
| 9 | 2 | 17.988 | 20/6:01.540 |
| 10 | 2 | 18.214 | 20/6:01.814 |
| 11 | 2 | 18.536 | 20/6:02.624 |
| 12 | 2 | 18.707 | 20/6:03.583 |
| 13 | 2 | 18.546 | 20/6:04.148 |
| 14 | 2 | 17.680 | 20/6:03.394 |
| 15 | 2 | 18.843 | 20/6:04.292 |
| 16 | 2 | 17.900 | 20/6:03.899 |
| 17 | 2 | 18.149 | 20/6:03.845 |
| 18 | 2 | 18.280 | 20/6:03.942 |
| 19 | 2 | 18.651 | 20/6:04.420 |
| 20 | 2 | 18.956 | 20/6:05.155 |