| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 20.109 | 21/7:02.289 |
| 2 | 3 | 22.146 | 20/7:02.550 |
| 3 | 3 | 18.549 | 21/7:05.628 |
| 4 | 3 | 23.456 | 20/7:01.300 |
| 5 | 3 | 19.882 | 21/7:17.396 |
| 6 | 3 | 19.978 | 21/7:14.420 |
| 7 | 3 | 24.392 | 20/7:04.320 |
| 8 | 3 | 20.039 | 20/7:01.377 |
| 9 | 3 | 20.124 | 21/7:20.242 |
| 10 | 3 | 20.695 | 21/7:19.677 |
| 11 | 4 | 23.982 | 20/7:04.276 |
| 12 | 3 | 20.370 | 20/7:02.870 |
| 13 | 3 | 18.990 | 21/7:20.535 |
| 14 | 3 | 18.997 | 21/7:17.563 |
| 15 | 3 | 24.753 | 20/7:01.949 |
| 16 | 4 | 20.586 | 20/7:01.310 |
| 17 | 5 | 22.066 | 20/7:02.487 |
| 18 | 4 | 17.921 | 21/7:19.874 |
| 19 | 3 | 19.928 | 21/7:18.749 |
| 20 | 3 | 27.420 | 20/7:04.383 |