| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 17.822 | 21/6:14.262 |
| 2 | 4 | 17.871 | 21/6:14.776 |
| 3 | 4 | 17.939 | 21/6:15.424 |
| 4 | 4 | 17.756 | 21/6:14.787 |
| 5 | 4 | 17.633 | 21/6:13.888 |
| 6 | 4 | 18.058 | 21/6:14.777 |
| 7 | 4 | 17.929 | 21/6:15.024 |
| 8 | 5 | 18.183 | 21/6:15.876 |
| 9 | 5 | 18.050 | 21/6:16.229 |
| 10 | 5 | 17.955 | 21/6:16.312 |
| 11 | 5 | 17.607 | 21/6:15.715 |
| 12 | 5 | 18.448 | 21/6:16.689 |
| 13 | 5 | 18.485 | 21/6:17.574 |
| 14 | 5 | 17.953 | 21/6:17.534 |
| 15 | 5 | 17.960 | 21/6:17.509 |
| 16 | 5 | 17.746 | 21/6:17.206 |
| 17 | 5 | 18.340 | 21/6:17.673 |
| 18 | 5 | 18.391 | 20/6:00.140 |
| 19 | 5 | 18.451 | 20/6:00.607 |
| 20 | 5 | 18.384 | 20/6:00.961 |