The Urolako Trena Marathon is a popular race held in Zumarraga, Gipuzkoa, and is part of the running race calendar in Gipuzkoa. The course follows the route of the old Urola train line, combining fast sections with a mostly favorable profile, making it an attractive event for both regular runners and those looking for a different half marathon. The first edition was held on February 22, 2026, coinciding with the centenary of the Urola Train's inauguration. The goal is to expand it to a full marathon in future editions.