50K ultramarathons in Indiana, United States in 2026

Rocky, root-filled singletrack on the Knobstone Trail with steep escarpments, significant elevation changes, and a summit at Round Top Knob

Multiple-loop 50k course through Tryon Farm’s natural habitats in Michigan City, supported by on-course aid stations

Flat, fast 50K on central Indiana’s B&O Trail, linking Speedway, downtown Indianapolis and quieter rural stretches.

Rugged climbs and technical singletrack through fall foliage on the historic Tecumseh Hiking Trail near Yellowwood Lake

Technical 50k at O’Bannon Woods State Park: two longer loops and a shorter finish loop, with roughly 3,500 feet of elevation gain.

Technical singletrack and rugged trails through Jackson-Washington State Forest, with scenic southern Indiana views and a community hub at Pyoca Camp