The Moonbow 50K is a 3x looped trail race that begins at the Visitors Center in Cumberland Falls State Park. The people of this area were hearty folk and this course will show you how they got that way.  With roughly 95% of the course off-road (including a segment of the Sheltowee Trace Trail - Kentucky's long-trail), runners will traverse miles of rugged, winding, and at times grueling single-track trail.

Natural landmarks you'll encounter include stunning rock houses and overhangs, creek crossings and magnificent waterfalls.  Most striking is the iconic finish just a short walk from the 68-foot high, 125-foot wide Cumberland Falls - home of the moonbow -- often referred to as 'The Niagara of the South'.
Natural beauty doesn't come to you - you go to it.  Come on out, retrace the steps of the hearty folk that once called this place home and redefine what you call flat terrain.

*Moonbow 50K is a very technical and challenging course and is highly recommended to have some experience before entering.

Upcoming Races

Nov 27 2021
50 KM
Out and Back Course
11 :00 Cutoff
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts

Additional Distances

This event also has the following non ultra distances

10 KM 30 KM


Date Finishers Top Result (M) Top Result (F)
11/27/21 No Results Posted. Submit Results
09/26/20 Race Cancelled
09/28/19 47 5:30:59 6:03:42
09/29/18 21 4:27:51 7:29:08
09/30/17 42 5:44:48 6:55:36
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information. If you see an error, please let us know

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