| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 20.241 | 21/7:05.061 |
| 2 | 2 | 20.434 | 21/7:07.087 |
| 3 | 2 | 19.400 | 21/7:00.525 |
| 4 | 2 | 18.854 | 22/7:14.110 |
| 5 | 2 | 19.064 | 22/7:11.169 |
| 6 | 3 | 20.411 | 22/7:14.148 |
| 7 | 3 | 23.966 | 21/7:07.110 |
| 8 | 4 | 21.120 | 21/7:09.161 |
| 9 | 4 | 19.732 | 21/7:07.518 |
| 10 | 3 | 19.706 | 21/7:06.149 |
| 11 | 3 | 19.772 | 21/7:05.155 |
| 12 | 3 | 19.916 | 21/7:04.578 |
| 13 | 3 | 21.101 | 21/7:06.004 |
| 14 | 3 | 19.584 | 21/7:04.952 |
| 15 | 3 | 18.512 | 21/7:02.538 |
| 16 | 3 | 20.416 | 21/7:02.926 |
| 17 | 3 | 26.611 | 21/7:10.920 |
| 18 | 3 | 21.905 | 21/7:12.536 |
| 19 | 3 | 21.023 | 21/7:13.007 |
| 20 | 3 | 18.250 | 21/7:10.519 |
| 21 | 3 | 25.306 | 21/7:15.324 |