100mi backyard ultramarathons

Looped 4.167-mile course with a last-person-standing format; hourly starts testing stamina, mental resilience, and strategic pacing

24-hour backyard ultra with a 4.167-mile loop through Upper Peninsula woods, featuring gravel, rooty singletrack, rolling ski trails, and 289 feet of elevation

Rural Kentucky park and fairgrounds loops with small-town scenery and last runner standing format

Paved out-and-back 4.167-mile loops along 8 Mile Creek Trail, no street crossings, 12 and 24-hour last participant standing format in Paragould, Arkansas

24-hour backyard ultra with repeated hourly loops, shared aid hub, and a last-runner-standing format shaped by pacing, recovery, and endurance.

Scenic lakeside and woodland trails through rolling terrain in Midlothian, Virginia with a 4.167-mile Backyard Ultra loop under open skies