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Colossal Vail 50/50

Vail, United States • 6 Dec 2025

The Colossal Vail 50/50 is a trail running event held near Vail, Arizona, featuring ultra distances of 50 miles, 55K, and half-marathon options, including day and night courses. Starting and finishing at Colossal Cave Mountain Park, the race showcases scenic high desert terrain along the Arizona Trail, with rolling, fast trails and stunning vistas between Saguaro National Park-East and the Santa Rita Mountains. The event emphasizes environmental care as a cupless race, offering reusable cups for purchase. Well-stocked aid stations, quality finish line food, and a festive atmosphere support runners. It is part of the Southern Arizona Triple 50 series and benefits the Arizona Trail Association. Visit the organization's website for the most recent information.

United States Arizona Vail

Race information

Website Registration
50 mi
50 Miler
55 km
55k
13 mi
13 Miler
13 mi
13 Miler Night
Visit the organization's website for the most recent information.
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