| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 20.722 | N/A |
| 2 | 4 | 17.073 | 21/6:02.182 |
| 3 | 4 | 17.151 | 21/6:02.962 |
| 4 | 4 | 17.140 | 21/6:03.148 |
| 5 | 4 | 17.356 | 21/6:04.322 |
| 6 | 4 | 18.659 | 21/6:10.238 |
| 7 | 4 | 18.363 | 21/6:13.195 |
| 8 | 4 | 17.094 | 21/6:11.682 |
| 9 | 4 | 17.172 | 21/6:10.742 |
| 10 | 4 | 17.719 | 21/6:11.226 |
| 11 | 4 | 19.967 | 21/6:16.011 |
| 12 | 4 | 17.304 | 21/6:15.263 |
| 13 | 4 | 18.019 | 21/6:15.750 |
| 14 | 4 | 17.726 | 21/6:15.711 |
| 15 | 4 | 17.722 | 21/6:15.672 |
| 16 | 4 | 17.685 | 21/6:15.588 |
| 17 | 4 | 17.150 | 21/6:14.847 |
| 18 | 4 | 18.18 | 21/6:15.192 |
| 19 | 4 | 17.662 | 21/6:15.124 |
| 20 | 4 | 18.079 | 21/6:15.502 |
| 21 | 4 | 17.612 | 21/6:15.375 |