Williams Route 66 Marathon 2026

The Williams Route 66 Marathon is a running event in Tulsa, Oklahoma, featuring a full marathon, half marathon, and 5K. The event takes place in late November. The official distances are 26.22 miles for the marathon, 13.11 miles for the half, and 3.11 miles for the 5K. Each race follows a single-loop course. The 5K is held on the first day of the event, with the half marathon and marathon taking place on the second day. The event's name connects it to Tulsa's Route 66 heritage. The race details include city road courses, three distances, and a single loop for each race.