Stage 20

Saturday September 13 2025 - Rob. de Chavela to P. Navacerrada - 156 km Mtn Finish
 

Last mountain stage of this edition. A very winding day, with practically no flat, which will recover historic climbs such as the Alto del León. The breakaway will be able to look for its options from the first climb of the day, the Escondida, to try to put the peloton on the ropes in the fight for the stage. The Navacerrada pass will be the main protagonist of the day, first, along the Segovian side of the 'seven revolts' and, as a final climb, the route from Becerril de la Sierra. The Sierra de Guadarrama will crown the winner of La Vuelta 25.