Grandmaster Ultras

Grandmaster Ultras is an ultrarunning event held in the warm, scenic Arizona Strip, exclusively for runners aged 50 and above. The race features multiple distances: 50K, 50 miles, 100K, and 100 miles, with courses primarily on ATV trails showcasing desert landscapes. The 50K course is an out-and-back route with a 1,580-foot elevation change, including the notable Thelma Louise loop.

Longer distances involve multiple laps of these courses, with elevation gains up to 2,450 feet. Aid stations are spaced every 4 to 7 miles, providing support throughout. Pacers are allowed for certain distances, especially for runners over 70.

The event fosters a supportive atmosphere for seasoned ultrarunners. Visit the organization's website for the most recent information.