| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 10.343 | N/A |
| 2 | 4 | 17.773 | 21/6:05.803 |
| 3 | 3 | 18.056 | 21/6:08.633 |
| 4 | 3 | 17.548 | 21/6:06.189 |
| 5 | 3 | 17.376 | 21/6:04.108 |
| 6 | 3 | 17.745 | 21/6:04.335 |
| 7 | 3 | 18.363 | 21/6:06.546 |
| 8 | 3 | 17.657 | 21/6:06.108 |
| 9 | 3 | 18.080 | 21/6:06.838 |
| 10 | 4 | 17.659 | 21/6:06.469 |
| 11 | 4 | 17.786 | 21/6:06.429 |
| 12 | 4 | 18.131 | 21/6:07.023 |
| 13 | 4 | 17.864 | 21/6:07.073 |
| 14 | 4 | 19.465 | 21/6:09.578 |
| 15 | 4 | 18.046 | 21/6:09.698 |
| 16 | 4 | 17.899 | 21/6:09.607 |
| 17 | 4 | 18.355 | 21/6:10.096 |
| 18 | 5 | 21.666 | 21/6:14.424 |
| 19 | 4 | 17.876 | 21/6:14.059 |
| 20 | 5 | 19.416 | 21/6:15.354 |
| 21 | 5 | 19.596 | 21/6:16.700 |