| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.380 | 20/6:07.600 |
| 2 | 1 | 18.729 | 20/6:11.090 |
| 3 | 2 | 18.204 | 20/6:08.753 |
| 4 | 1 | 17.722 | 20/6:05.175 |
| 5 | 1 | 17.979 | 20/6:04.056 |
| 6 | 1 | 18.064 | 20/6:03.593 |
| 7 | 1 | 18.462 | 20/6:04.400 |
| 8 | 1 | 17.962 | 20/6:03.755 |
| 9 | 1 | 18.727 | 20/6:04.953 |
| 10 | 1 | 18.491 | 20/6:05.440 |
| 11 | 1 | 18.103 | 20/6:05.133 |
| 12 | 1 | 18.554 | 20/6:05.628 |
| 13 | 1 | 18.202 | 20/6:05.506 |
| 14 | 1 | 18.387 | 20/6:05.666 |
| 15 | 1 | 18.501 | 20/6:05.956 |
| 16 | 1 | 18.611 | 20/6:06.348 |
| 17 | 1 | 20.580 | 20/6:09.009 |
| 18 | 1 | 18.329 | 20/6:08.874 |
| 19 | 1 | 18.739 | 20/6:09.185 |
| 20 | 1 | 18.218 | 20/6:08.944 |