Summer ultramarathons in Indiana, United States

Nighttime endurance laps on an illuminated dirt horse track at Harrison County Fairgrounds with continuous chip timing and flexible distance

Scenic 5K campus loop at Butler University with repeated laps, historic Hinkle Fieldhouse, Tent Village, showers, and on-site refreshments

Challenging dirt trails and singletrack loops through Franke Park, four or eight hour solo or team formats, event village amenities

Looped course combining pavement and single-track trails, strategic pacing, elimination format, poker chip awards, and cash prizes for fastest completion

100km through old-growth forest on mostly singletrack, with rock formations, lakes and creeks, plus roughly 8,500 feet of climbing

100km of singletrack through Morgan Monroe State Forest, rugged rock formations, old growth woodland, creek crossings, and 8,500 feet of elevation gain

Point-to-point 50k on the Monon Trail, net downhill from Sheridan cornfields to downtown Indianapolis, finishing via the Cultural Trail in White River State

Technical, rugged singletrack loop in Brown County State Park with 8-hour timed format and scenic Indiana woodland terrain.

Quarry cliffs, scenic ponds, and challenging climbs on a historic 4.5-mile loop amid reclaimed nature park and soaring turkey vultures

Nine-stage 50K trail race with golf-inspired scoring, featuring 3-4 mile segments, time-based stroke system, and options for solo or relay teams