RaceNature Castelo de Vide is a three-day GPS mountain bike stage race held in Castelo de Vide, Portugal’s Alto Alentejo region. Participants complete a prologue and two stages, with their cumulative time determining the overall classification. Organized by Cabreira Solutions and adhering to Portuguese Cycling Federation rules, the event features categories for solo riders, pairs, and e-bikes.
The route incorporates technical trails, rural tracks, challenging climbs, and technical descents. A key element is the navigation; riders follow a GPS track without on-course markings. This emphasizes route-reading, pacing, and effort management alongside physical conditioning. Support includes aid stations, medical assistance, and mechanical support, with awards for finishers and podium places.