| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 1 | 18.128 | 20/6:02.056 |
| 2 | 1 | 18.545 | 20/6:06.073 |
| 3 | 1 | 18.253 | 20/6:06.173 |
| 4 | 1 | 18.314 | 20/6:06.002 |
| 5 | 1 | 18.453 | 20/6:06.772 |
| 6 | 1 | 18.291 | 20/6:06.613 |
| 7 | 1 | 18.516 | 20/6:07.142 |
| 8 | 1 | 19.535 | 20/6:10.087 |
| 9 | 1 | 20.529 | 20/6:14.586 |
| 10 | 1 | 18.375 | 20/6:13.878 |
| 11 | 1 | 18.409 | 20/6:13.036 |
| 12 | 1 | 18.638 | 20/6:13.031 |
| 13 | 1 | 18.163 | 20/6:12.536 |
| 14 | 1 | 20.156 | 20/6:14.721 |
| 15 | 1 | 18.811 | 20/6:14.821 |
| 16 | 1 | 18.815 | 20/6:14.913 |
| 17 | 1 | 18.580 | 20/6:14.718 |
| 18 | 1 | 20.579 | 20/6:16.766 |
| 19 | 1 | 20.211 | 20/6:18.211 |
| 20 | 1 | 18.930 | 20/6:18.231 |