The race was decided in kilometre 4, uphill, where the leader lost 17 seconds and everyone behind lost more.
| Km | Split | Position | Gap to leader | Field median | Difference |
|---|---|---|---|---|---|
| 1 | 3:04 | 4 | +0:06 | 3:22 | −0:18 |
| 2 | 3:02 | 3 | +0:04 | 3:26 | −0:24 |
| 3 | 3:07 | 3 | +0:05 | 3:31 | −0:24 |
| 4 | 3:19 | 2 | +0:01 | 3:48 | −0:29 |
| 5 | 3:09 | 1 | — | 3:35 | −0:26 |
| 6 | 3:01 | 1 | — | 3:29 | −0:28 |