Arrowhead Endurance Run

Arrowhead Endurance Run takes place at Arrowhead Lake Campground in Johnston City, Illinois (about 15 minutes north of Marion). The course features a single certified 2.07-mile loop around the lake, mostly gravel with a short concrete section at the boat ramp, offering less than 50 feet of elevation change per lap. The event supports multiple formats, including 24-hour and 24-hour relay, 12-hour, 6-hour, and a 3-hour race, with a new 12-hour night-time option.

Participants enjoy a large start/finish aid station and a chance to earn medals, shirts, age-group and overall awards; 100-mile finishers receive buckles. Camping and nearby hotels are available. Visit the organization's website for the most recent information.