September ultramarathons in Indiana, United States

Nighttime six-hour race on a 4.1-mile loop featuring paved, gravel, and single-track dirt trail, with all laps starting and ending at the HUB

Central Indiana's only official Backyard Ultra featuring a 4.167-mile loop at Koteewi Park, testing endurance and mental resilience on repeat laps

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

Five-hour multi-lap event on technical three-mile trails in scenic Franke Park, open to runners, mountain bikers, and wheelchair athletes.