| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 17.366 | 21/6:04.686 |
| 2 | 4 | 17.476 | 21/6:05.841 |
| 3 | 4 | 17.431 | 21/6:05.911 |
| 4 | 5 | 17.599 | 21/6:06.828 |
| 5 | 6 | 18.235 | 21/6:10.049 |
| 6 | 6 | 18.307 | 21/6:12.449 |
| 7 | 6 | 17.328 | 21/6:11.226 |
| 8 | 6 | 17.751 | 21/6:11.419 |
| 9 | 6 | 18.015 | 21/6:12.185 |
| 10 | 6 | 17.697 | 21/6:12.130 |
| 11 | 6 | 20.206 | 21/6:16.876 |
| 12 | 6 | 18.411 | 21/6:17.688 |
| 13 | 6 | 18.317 | 20/6:00.214 |
| 14 | 6 | 17.568 | 21/6:17.560 |
| 15 | 6 | 17.402 | 21/6:16.753 |
| 16 | 5 | 19.269 | 20/6:00.472 |
| 17 | 5 | 22.441 | 20/6:05.669 |
| 18 | 5 | 18.034 | 20/6:05.392 |
| 19 | 6 | 17.622 | 20/6:04.711 |
| 20 | 6 | 18.333 | 20/6:04.808 |