| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 20.690 | N/A |
| 2 | 2 | 19.374 | 25/8:05.666 |
| 3 | 2 | 18.067 | 26/8:08.702 |
| 4 | 2 | 18.143 | 26/8:03.089 |
| 5 | 1 | 20.010 | 26/8:13.152 |
| 6 | 2 | 18.993 | 26/8:13.625 |
| 7 | 2 | 21.489 | 25/8:04.994 |
| 8 | 2 | 19.504 | 25/8:05.535 |
| 9 | 3 | 29.590 | 24/8:15.553 |
| 10 | 3 | 19.959 | 24/8:13.797 |
| 11 | 3 | 23.991 | 23/8:00.754 |
| 12 | 3 | 22.617 | 23/8:04.164 |
| 13 | 3 | 19.165 | 23/8:00.677 |
| 14 | 4 | 25.314 | 23/8:08.132 |
| 15 | 4 | 20.022 | 23/8:06.206 |
| 16 | 4 | 19.444 | 23/8:03.690 |
| 17 | 4 | 19.830 | 23/8:02.019 |
| 18 | 3 | 19.068 | 24/8:20.415 |
| 19 | 3 | 19.116 | 24/8:18.190 |
| 20 | 3 | 19.294 | 24/8:16.414 |
| 21 | 3 | 19.282 | 24/8:14.802 |
| 22 | 3 | 19.835 | 24/8:13.950 |
| 23 | 3 | 18.581 | 24/8:11.863 |
| 24 | 3 | 23.423 | 24/8:14.801 |