50K.U.M

Houghton, United States • 8 Nov 2025

The 50K.U.M is an ultra marathon event held in Houghton, Michigan, on the scenic Michigan Technological University Tech Trails. It offers two race distances: a 25K single loop and a 50K double loop course through wooded trails. The 50K race starts in the dark, requiring participants to use headlamps for the initial segment.

The course features multiple aid stations stocked with water, drink mixes, and typical ultra foods, and runners must check in at each station. The race emphasizes safety with strict time limits (8 hours for 50K, 7 hours for 25K) and marked routes. Parking and lodging options are available nearby, and race day includes merchandise sales and awards. Visit the organization's website for the most recent information.

Race information

50 km
50k
25 km
25k
Visit the organization's website for the most recent information.
Trail runs nearby