| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.278 | N/A |
| 2 | 4 | 17.415 | 21/6:08.578 |
| 3 | 4 | 17.410 | 21/6:08.528 |
| 4 | 4 | 17.433 | 21/6:08.664 |
| 5 | 4 | 17.530 | 21/6:09.218 |
| 6 | 4 | 17.612 | 21/6:09.878 |
| 7 | 4 | 17.443 | 21/6:09.754 |
| 8 | 4 | 18.296 | 21/6:12.103 |
| 9 | 4 | 17.206 | 21/6:11.140 |
| 10 | 4 | 17.894 | 21/6:11.920 |
| 11 | 4 | 17.629 | 21/6:12.014 |
| 12 | 4 | 17.817 | 21/6:12.432 |
| 13 | 4 | 17.959 | 21/6:13.018 |
| 14 | 4 | 19.073 | 21/6:15.227 |
| 15 | 4 | 18.177 | 21/6:15.840 |
| 16 | 4 | 18.042 | 21/6:16.192 |
| 17 | 4 | 18.097 | 21/6:16.569 |
| 18 | 4 | 18.560 | 21/6:17.446 |
| 19 | 4 | 17.750 | 21/6:17.325 |
| 20 | 4 | 17.983 | 21/6:17.463 |
| 21 | 4 | 18.740 | 21/6:18.344 |