Find the best calendar of popular races, marathons, half marathons, and 10K events. Dates, registrations, and all the details for your big challenge, right here.

The event is scheduled for October, but the course, start time and registration details are still pending.

The date and town are confirmed, but the course, registration and use of proceeds are still unclear.

Two routes through Órzola’s trails, with night starts, required gear and practical details for planning the race.

Tremp has a date for its memorial race, but the start time, course and registration details are still unconfirmed.

The Albacete-area event returns on October 31; its recent history points to a well-attended day of popular racing.

A 10-kilometre road race connects two towns in the Deba valley on the afternoon of Oct. 31.

A morning of races for all ages coincides with Inca’s fairs and Halloween celebrations.

The Maresme event is scheduled for late October, although some course details have yet to be confirmed.

Obón hosts a day of trail running, mountain biking and duathlon, with two running distances and tiered entry fees.

Madrid’s long-running cross-country event moves to Vicálvaro, bringing clubs, young runners and popular race participants together.

Ten kilometres through Barcelona, an 8:50 a.m. start and tiered entry fees for the 2026 edition.

A 12-kilometre autumn race in Cantabria: the announced date, location and details still awaiting confirmation.