| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.040 | 21/7:00.840 |
| 2 | 4 | 21.821 | 21/7:19.541 |
| 3 | 4 | 20.303 | 21/7:15.148 |
| 4 | 4 | 20.060 | 21/7:11.676 |
| 5 | 4 | 18.404 | 21/7:02.638 |
| 6 | 4 | 21.528 | 21/7:07.546 |
| 7 | 4 | 25.174 | 20/7:00.943 |
| 8 | 4 | 21.042 | 20/7:00.930 |
| 9 | 4 | 20.353 | 21/7:20.358 |
| 10 | 4 | 26.431 | 20/7:10.312 |
| 11 | 5 | 20.633 | 20/7:08.707 |
| 12 | 4 | 19.871 | 20/7:06.100 |
| 13 | 4 | 24.053 | 20/7:10.328 |
| 14 | 4 | 22.253 | 20/7:11.380 |
| 15 | 4 | 23.549 | 20/7:14.020 |
| 16 | 4 | 19.039 | 20/7:10.693 |
| 17 | 4 | 25.818 | 20/7:15.732 |
| 18 | 4 | 21.031 | 20/7:14.892 |
| 19 | 4 | 21.471 | 20/7:14.604 |
| 20 | 4 | 21.146 | 20/7:14.020 |