Arratiako Maratoi Txikia is a 10 km road race in Bizkaia, running from the Zeanuri and Artea area toward Igorre in the Arratia valley. The main race is mostly on asphalt, and the wider event includes shorter races for all ages, with distances from 300 meters up to 11 kilometers.
The route links several Arratia towns, including Zeanuri, Areatza, Artea, Arantzazu, and Igorre, making it feel like a valley-wide race rather than a single-town loop. Arratiako Guraso Elkartea organizes it, and the event has already reached more than forty editions, giving it the feel of a long-running local fixture built around families, school-age runners, and adults sharing the same race day.