| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 19.929 | N/A |
| 2 | 4 | 17.168 | 21/6:03.289 |
| 3 | 4 | 17.259 | 21/6:04.199 |
| 4 | 4 | 17.034 | 21/6:03.002 |
| 5 | 4 | 16.576 | 21/6:00.114 |
| 6 | 4 | 16.982 | 21/6:00.005 |
| 7 | 4 | 16.421 | 22/6:14.969 |
| 8 | 4 | 16.654 | 22/6:14.211 |
| 9 | 4 | 17.098 | 22/6:14.808 |
| 10 | 4 | 16.716 | 22/6:14.381 |
| 11 | 4 | 16.631 | 22/6:13.860 |
| 12 | 4 | 16.438 | 22/6:13.066 |
| 13 | 4 | 16.928 | 22/6:13.262 |
| 14 | 4 | 16.469 | 22/6:12.687 |
| 15 | 4 | 16.881 | 22/6:12.811 |
| 16 | 4 | 16.960 | 22/6:13.003 |
| 17 | 4 | 16.764 | 22/6:12.963 |
| 18 | 4 | 16.582 | 22/6:12.680 |
| 19 | 4 | 17.524 | 22/6:13.528 |
| 20 | 4 | 16.700 | 22/6:13.375 |
| 21 | 4 | 16.654 | 22/6:13.189 |