MoMoFo 100k and 20 mile Fun Run
⚠️ 2027 edition: provisional information
The date is estimated from the 2026 edition (June 5, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.
Available distances
About
The MoMoFo 100k and 20 mile Fun Run, organized by Woohoo Trail Fun LLC, take place in the Martinsville and Monroe area of Indiana, with the 100K (62.1 miles) starting on June 4, 2027, at 7 p.m. and the 20-mile (32.2 km) fun run on June 5 at 8:30 a.m.
Set in scenic Morgan-Monroe State Forest, the event is a challenging trail race with significant elevation change, through old-growth forest and natural landscapes. The 20-mile fun run follows the same loop, with full support at every aid station. Expect a friendly atmosphere and a celebration of trail running in a beautiful natural setting.
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Races nearby
Other upcoming races around Martinsville.
FroMoMoFo 20 miler & 10 mile fun run
Jan 17, 2027 · Martinsville, IN · 0 mi away
10 mi · 20 mi
Cedar Creek Haunted Wine Run 5k
Oct 24, 2026 · Martinsville, IN · 0 mi away
3.1 mi
Seven Oaks Travel Trot 5K
Oct 24, 2026 · Ellettsville, IN · 17 mi away
3.1 mi
Brown County YMCA Hilly Half
Nov 21, 2026 · Nashville, IN · 18 mi away
13.1 mi · 6.2 mi · 3.1 mi
Whistle Pig Shadow Chaser 8k/5k
Feb 6, 2027 · Nashville, IN · 18 mi away
5 mi · 3.1 mi
Indiana Trail Running Association Winter Trail Run n' Fun
Feb 20, 2027 · Nashville, IN · 18 mi away
6.5 mi