8/16/20 – 2020 Date Confirmed – Registration Is Open
2019 35th Annual Mountain Man August Results Here

Experience one of the Southwest’s best venues. This local, family-run event is the 5th oldest triathlon West of the Mississippi River. The race course includes breathtaking views of the San Francisco Peaks, Lake Mary, and Mormon Lake. Right after the monsoon season with flora in full bloom. This is our 36th annual event with medals for all finishers, handcrafted awards, food, fun, and a great course. The Upper Lake Mary boat docks are about ten miles south of Flagstaff, AZ on Lake Mary Road at mile post 333. Press Here for Directions to the race site from downtown Flagstaff. RFID Race Timing Systems by 4Peaks Racing.

Past Race Results

Olympic Race Distances: 1500 m Swim, 40 km Bike, and 10 km Run

Long Course Race Distances (70.4 miles total) : 1900 m Swim, 56.1 mi Bike, and 13.1 mi Run

2019 Start Time: First Swim Wave: 6:10 AM, Transition area closes at 5:55 AM


The Arizona Tri Series is composed of 5 events: