| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 22.957 | N/A |
| 2 | 1 | 22.866 | 21/8:00.277 |
| 3 | 2 | 30.499 | 19/8:23.242 |
| 4 | 2 | 22.329 | 20/8:22.352 |
| 5 | 2 | 23.674 | 20/8:14.955 |
| 6 | 4 | 33.086 | 19/8:19.791 |
| 7 | 3 | 22.215 | 19/8:06.964 |
| 8 | 3 | 21.462 | 20/8:21.026 |
| 9 | 2 | 21.190 | 20/8:11.594 |
| 10 | 3 | 26.123 | 20/8:14.672 |
| 11 | 2 | 23.854 | 20/8:12.823 |
| 12 | 2 | 23.242 | 20/8:10.253 |
| 13 | 2 | 21.686 | 20/8:05.648 |
| 14 | 2 | 22.210 | 20/8:02.517 |
| 15 | 3 | 27.024 | 20/8:06.367 |
| 16 | 2 | 21.222 | 20/8:02.354 |
| 17 | 2 | 22.416 | 20/8:00.260 |
| 18 | 2 | 28.447 | 20/8:05.154 |
| 19 | 2 | 22.669 | 20/8:03.405 |
| 20 | 2 | 23.061 | 20/8:02.232 |