| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 21.381 | 17/6:03.477 |
| 2 | 3 | 20.436 | 18/6:16.353 |
| 3 | 3 | 19.447 | 18/6:07.584 |
| 4 | 3 | 20.577 | 18/6:08.284 |
| 5 | 3 | 20.056 | 18/6:06.829 |
| 6 | 2 | 19.210 | 18/6:03.321 |
| 7 | 2 | 20.336 | 18/6:03.711 |
| 8 | 2 | 19.789 | 18/6:02.772 |
| 9 | 2 | 19.789 | 18/6:02.042 |
| 10 | 2 | 20.153 | 18/6:02.113 |
| 11 | 2 | 19.559 | 18/6:01.199 |
| 12 | 2 | 20.745 | 18/6:02.217 |
| 13 | 3 | 20.727 | 18/6:03.053 |
| 14 | 3 | 19.920 | 18/6:02.732 |
| 15 | 3 | 20.250 | 18/6:02.850 |
| 16 | 2 | 21.309 | 18/6:04.144 |
| 17 | 2 | 20.072 | 18/6:03.977 |
| 18 | 2 | 19.879 | 18/6:03.635 |