The Zurich Marathon Donostia San Sebastián 2026 will take place on November 22nd. This event offers two distances: a full marathon (42.195 km) and a 10K. The race is known for its fast course, with 73% of participants in 2025 finishing under 4 hours, making it one of the fastest marathons in Spain. It's part of Zurich's "Las 5 Grandes" circuit. The marathon is described as more than just a race; it's a unique urban route through a city fully engaged with the event, combining athletic performance, scenery, gastronomy, and culture in a prime Northern European destination. The organization is focused on providing a fast course, excellent runner services, and an unforgettable experience for both competitive runners and those seeking to enjoy the marathon.