| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 17.313 | 21/6:03.573 |
| 2 | 3 | 18.060 | 21/6:11.416 |
| 3 | 3 | 17.189 | 21/6:07.934 |
| 4 | 3 | 17.669 | 21/6:08.713 |
| 5 | 4 | 17.604 | 21/6:08.907 |
| 6 | 4 | 17.927 | 21/6:10.167 |
| 7 | 4 | 17.638 | 21/6:10.200 |
| 8 | 4 | 17.568 | 21/6:10.041 |
| 9 | 4 | 18.514 | 21/6:12.125 |
| 10 | 3 | 19.206 | 21/6:15.245 |
| 11 | 3 | 19.185 | 21/6:17.758 |
| 12 | 3 | 17.727 | 21/6:17.300 |
| 13 | 3 | 17.225 | 21/6:16.102 |
| 14 | 3 | 18.044 | 21/6:16.303 |
| 15 | 3 | 18.009 | 21/6:16.429 |
| 16 | 3 | 17.441 | 21/6:15.794 |
| 17 | 3 | 20.039 | 20/6:00.421 |
| 18 | 3 | 16.880 | 21/6:17.111 |
| 19 | 3 | 19.480 | 20/6:00.756 |
| 20 | 3 | 18.004 | 20/6:00.722 |