| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.753 | 21/7:15.813 |
| 2 | 4 | 22.026 | 20/7:07.790 |
| 3 | 4 | 22.324 | 20/7:14.020 |
| 4 | 4 | 18.571 | 21/7:19.288 |
| 5 | 4 | 29.573 | 19/7:10.339 |
| 6 | 4 | 19.509 | 19/7:00.394 |
| 7 | 4 | 21.025 | 20/7:19.374 |
| 8 | 4 | 20.265 | 20/7:15.115 |
| 9 | 4 | 27.922 | 19/7:06.377 |
| 10 | 4 | 21.347 | 19/7:04.298 |
| 11 | 4 | 23.525 | 19/7:06.360 |
| 12 | 4 | 22.313 | 19/7:06.159 |
| 13 | 4 | 21.026 | 19/7:04.108 |
| 14 | 4 | 22.327 | 19/7:04.115 |
| 15 | 4 | 32.405 | 19/7:16.887 |
| 16 | 4 | 19.870 | 19/7:13.177 |
| 17 | 4 | 19.529 | 19/7:09.523 |
| 18 | 4 | 19.079 | 19/7:05.800 |
| 19 | 4 | 22.082 | 19/7:05.471 |