December brings three race distances to Tacoronte, from a 5-kilometer run to the full half marathon.
The Hortaleza race is scheduled for Dec. 19, with an 11 a.m. start and 5K and 10K options.
Two distances, an early start and separate entry fees shape this mountain race scheduled for December in Vallada.
Five distances, a vertical climb and a combined race make December a trail-running weekend in Jérica.
Four formats and a day of trail running in northern Madrid mark the circuit’s final event on Dec. 19.
A 10K road race across five towns in the Vall de Segó, with a morning start and several entry-fee tiers.
A team running event with two distance options and support for neurological disease research.
Sabadell is preparing another edition of its popular race, with two distances and support for organizations linked to ALS.
Three distances, a walking route and a community breakfast at this December event in La Riera de Gaià.
A winter mountain running event in Villaviciosa, with three distances and routes across tracks, woodland paths and forest.
December’s event combines obstacles and family categories, but published distance and fee information does not fully match.
A half-marathon through four towns around the Ferrol estuary, honoring Adolfo Ros, with its December 2026 date confirmed.