| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 17.451 | 21/6:06.471 |
| 2 | 3 | 17.931 | 21/6:11.511 |
| 3 | 3 | 17.734 | 21/6:11.812 |
| 4 | 3 | 17.735 | 21/6:11.968 |
| 5 | 3 | 17.773 | 21/6:12.221 |
| 6 | 3 | 17.608 | 21/6:11.812 |
| 7 | 3 | 18.078 | 21/6:12.930 |
| 8 | 3 | 19.456 | 21/6:17.386 |
| 9 | 3 | 17.843 | 21/6:17.088 |
| 10 | 4 | 30.452 | 19/6:04.916 |
| 11 | 4 | 17.129 | 19/6:01.328 |
| 12 | 4 | 17.389 | 20/6:17.632 |
| 13 | 4 | 17.274 | 20/6:15.158 |
| 14 | 4 | 18.180 | 20/6:14.333 |
| 15 | 4 | 17.288 | 20/6:12.428 |
| 16 | 4 | 17.444 | 20/6:10.956 |
| 17 | 4 | 17.528 | 20/6:09.756 |
| 18 | 4 | 17.334 | 20/6:08.474 |
| 19 | 4 | 18.004 | 20/6:08.033 |
| 20 | 4 | 17.761 | 20/6:07.392 |