About This Race
The Nifty Fifty has quietly established itself as a cornerstone of Arizona's trail running calendar over more than a decade of consistent operation. Set in the rugged terrain around Vail, this multi-distance event offers runners three distinct challenges ranging from an accessible 10K to a demanding 50K traverse through some of southern Arizona's most varied landscape. What distinguishes this race is its thoughtful course design that showcases the region's diverse trail systems. The 50K route weaves through highland terrain before descending to follow Salmon Creek, creating a journey that tests both climbing strength and technical descending skills. The race's longevity speaks to strong local organization and a course that has proven both challenging and fair to the hundreds of runners who have completed it since 2013. The August timing places this race in Arizona's monsoon season, when afternoon thunderstorms can provide both relief from heat and additional technical challenge. Early morning starts help runners tackle the most exposed sections before temperatures peak, though the 5,000 feet of elevation gain ensures this remains a serious undertaking regardless of weather conditions.
The 50K course begins on Basin Road before ascending through highland terrain via the Flume, offering runners expansive views of the surrounding desert mountains. The route then transitions to Glacier Avenue before connecting with the Salmon Creek Trail system, where runners encounter the day's most technical terrain along a scenic out-and-back section that showcases riparian vegetation rare in this desert environment.
After retracing their steps back to Basin Road, 50K runners join the 25K course for the final segment. The varied terrain includes fire roads, singletrack, and creek crossings, with the total 5,000 feet of elevation gain distributed throughout the course rather than concentrated in single climbs.
Practical Info
August temperatures typically range from 70-95°F with possible afternoon thunderstorms during Arizona's monsoon season.
TUS - Tucson International Airport
Vail is a small community southeast of Tucson with limited lodging options. Most runners stay in Tucson, approximately 30 minutes drive from the race start.
Best For
Notable Features
The Nifty Fifty stands out for its decade-plus consistency and the opportunity to experience three distinct Arizona trail ecosystems in a single race. The Salmon Creek section provides a rare glimpse of desert riparian habitat, while the highland portions offer commanding views across southern Arizona's basin and range topography.