| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 17.509 | 21/6:07.689 |
| 2 | 1 | 18.045 | 21/6:13.317 |
| 3 | 1 | 18.376 | 21/6:17.510 |
| 4 | 1 | 17.811 | 21/6:16.640 |
| 5 | 1 | 17.783 | 21/6:16.001 |
| 6 | 2 | 17.582 | 21/6:14.871 |
| 7 | 1 | 17.707 | 21/6:14.439 |
| 8 | 1 | 17.737 | 21/6:14.194 |
| 9 | 1 | 17.490 | 21/6:13.427 |
| 10 | 1 | 18.232 | 21/6:14.371 |
| 11 | 1 | 17.651 | 21/6:14.035 |
| 12 | 1 | 17.633 | 21/6:13.723 |
| 13 | 1 | 18.660 | 21/6:15.118 |
| 14 | 1 | 19.886 | 20/6:00.146 |
| 15 | 1 | 17.964 | 20/6:00.088 |
| 16 | 1 | 19.743 | 20/6:02.261 |
| 17 | 2 | 19.094 | 20/6:03.415 |
| 18 | 2 | 18.815 | 20/6:04.131 |
| 19 | 1 | 17.802 | 20/6:03.705 |
| 20 | 1 | 18.436 | 20/6:03.956 |