Fastest stages
| Nr. | Average speed (km/h) | Stage | KM | Vertical meters | |
|---|---|---|---|---|---|
| 1 | 42.109 | Stage 3 | Errenteria - Amasa-Villabona | 162.8 | 2799 | |
| 2 | 41.134 | Stage 5 | Amorebieta - Amorebieta | 164.5 | 3187 | |
| 3 | 41.11 | Stage 1 | Vitoria-Gasteiz - Labastida | 165.4 | 2514 | |
| 4 | 40.17 | Stage 4 | Santurtzi - Santurtzi | 175.7 | 3091 | |
| 5 | 39.612 | Stage 2 | Viana - Leitza | 193.8 | 3261 | |
| 6 | 38.154 | Stage 6 | Eibar - Eibar | 137.8 | 3472 |