MoMoFo 100k

Martinsville, United States • 5-6 Jun 2026

Event Overview

The MoMoFo offers two trail running events: a 100 km and a 20 mile distance. The event takes place at Morgan Monroe State Forest in Martinsville, Indiana.

Race Details

The 100 km is a looped course, with runners completing the same 20 mile loop three times. The terrain consists of 85% single track, 11% forest service road, and 4% paved road. The total elevation gain is approximately 8,500 feet. The race offers a 20-hour cutoff.

The 20 mile event runs a single loop of the same course and has a 6.5-hour cutoff.

Virtual options are available for both distances. Some registration options are available that do not include swag ("No SWAG").

Location & Environment

The course is located within Morgan Monroe State Forest, which features old-growth forests, natural rock formations, lakes, and creeks. The event takes place in early June, when southern Indiana typically experiences summertime heat and humidity. Visit the organization's website for the most recent information.

Race information

UTMB 20K UTMB 100K
100 km
Momofo 100k
Momofo 20 Mile Fun Run
Visit the organization's website for the most recent information.
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