Fastest stages
| Nr. | Average speed (km/h) | Stage | KM | Vertical meters | |
|---|---|---|---|---|---|
| 1 | 41.17 | Stage 1 | Bilbao - Bilbao | 162.7 | 2638 | |
| 2 | 39.7 | Stage 4 | Zumarraga - Arrate (Eibar) | 162.2 | 3498 | |
| 3 | 38.62 | Stage 2 | Bilbao - Vitoria-Gasteiz | 175.4 | 3064 | |
| 4 | 37.92 | Stage 5 | Eibar - Aia | 155.5 | 3377 | |
| 5 | 36.71 | Stage 3 | Vitoria-Gasteiz - Zumarraga | 170.7 | 2937 |