| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 19.160 | N/A |
| 2 | 1 | 17.355 | 21/6:06.026 |
| 3 | 1 | 18.049 | 21/6:13.002 |
| 4 | 1 | 17.663 | 21/6:12.094 |
| 5 | 1 | 17.411 | 21/6:11.055 |
| 6 | 1 | 17.822 | 21/6:12.036 |
| 7 | 2 | 20.301 | 20/6:03.063 |
| 8 | 2 | 18.106 | 20/6:03.079 |
| 9 | 2 | 18.098 | 20/6:03.071 |
| 10 | 2 | 17.730 | 20/6:02.289 |
| 11 | 2 | 17.741 | 20/6:01.684 |
| 12 | 2 | 18.012 | 20/6:01.657 |
| 13 | 2 | 17.688 | 20/6:01.122 |
| 14 | 2 | 19.118 | 20/6:02.758 |
| 15 | 2 | 19.282 | 20/6:04.384 |
| 16 | 2 | 17.292 | 20/6:03.272 |
| 17 | 2 | 17.998 | 20/6:03.138 |
| 18 | 2 | 20.218 | 20/6:05.500 |
| 19 | 4 | 20.597 | 20/6:08.001 |
| 20 | 4 | 18.251 | 20/6:07.892 |