MoMoFo 100k
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Event overview
The MoMoFo 100k and 20 mile Fun Run with virtual options takes place June 5-6, 2026 in Morgan Monroe State Forest, Martinsville, Indiana. The program includes the following distances:
- 100 km
- 20 miles
- Virtual 100 km
- Virtual 20 miles
The 100 km event is open to ages 18 and older.
Course and format
The in-person course is primarily trail terrain with natural features such as old growth forest, rock formations, lakes, and creeks. The route composition is listed as 85% single track, 11% forest service road, and 4% paved road. The 100 km event lists about 8,500 feet of total climbing. The 100 km has a 20 hour time limit and the 20 mile loop has a 6.5 hour time limit. The 20 mile loop uses the same course as a portion of the 100 km and shares the same aid station support.
Participants in both the 100 km and 20 mile events can earn UTMB index points.
Virtual options and entries
Virtual participants have a window from May 1 until June 7 to complete their chosen distance. Virtual efforts must be recorded with smart technology (GPS recommended) and may be cumulative or completed all at once. Virtual entries do not receive awards; finishers receive a sticker, T-shirt, and a wooden finisher medallion/coaster. Swag for virtual finishers will be mailed by June 14. Registration fees shown are $150 for the 100 km, $65 for the 20 mile event, and $35 for virtual entries. Visit the organization's website for the most recent information.
