Embark on an unforgettable journey of endurance at the Arrowhead Endurance Run, held on October 10-11, 2026, at the scenic Arrowhead Lake Campground in Johnston City, Illinois. This event offers a unique challenge for every runner, featuring diverse timed distances including 3HR, 6HR, 12HR, a special 12HR Night Time race, 24HR, and a 24HR Relay.

The course is a certified 2.07-mile loop winding around Arrowhead Lake, designed for speed and high mileage. With a surface that is 99% crushed gravel and only a small concrete section at the boat ramp, runners will find a gently rolling loop with less than 50 feet of elevation change per lap, making it ideal for setting personal bests and achieving significant distances. The partially shaded trail offers a picturesque backdrop for your endurance efforts. Typical race day conditions in October bring pleasant highs around 72°F and lows around 48°F, with a low 12% chance of precipitation, providing excellent running weather.

The Arrowhead Endurance Run is renowned for its welcoming atmosphere and exceptional runner support. A single, "awesomely stocked" aid station is conveniently located at the start/finish area, providing standard fare such as chips, candy, fruit, cookies, water, and electrolyte options, along with hot food throughout the event. Participants are also encouraged to set up their own personal pop-up tents and aid stations at the start/finish on race morning, fostering a strong sense of community and personalized support. This family-friendly event has quickly gained a reputation for allowing runners to achieve impressive mileage totals, making it a must-do for both seasoned ultra-runners and those looking to push their limits.