MoMoFo100k
Martinsville, United States • 5-6 Jun 2026
The MoMoFo 100k and 20 mile Fun Run is a challenging trail running event held in Morgan Monroe State Forest, Martinsville, Indiana. The main race is a 100-kilometer trail run starting in the evening, featuring about 7,500 feet of elevation gain across mostly single-track trails, forest service roads, and some paved sections. The course showcases old growth forests, natural rock formations, lakes, and creeks, with a generous 20-hour cutoff.
For those seeking a shorter adventure, a 20-mile fun run loop is offered with ample time to complete. Virtual race options are also available, allowing participants to run their chosen distance anytime and anywhere before the event date. The race fosters a friendly community atmosphere and true Hoosier hospitality. Visit the organization's website for the most recent information.