Arrowhead Endurance Run

Arrowhead Endurance Run

The Arrowhead Endurance Run takes place October 10–11, 2026 at Arrowhead Lake Campground in Johnston City, Illinois. The event uses a certified 2.07 mile loop around the lake. The trail surface is about 99% gravel with a short concrete section at the boat ramp, and each loop has under 50 feet of elevation change. Chip timing is provided by SoILL Racing.

Race formats offered include:

• 24 Hour race and 24 Hour relay
• 12 hour races including a night-time 12 hour
• 6 hour race
• 3 hour race

Event services and awards are provided on site. Packet pickup is held at the pavilion near the start/finish to the right of the boat dock. Finishers registered before the shirt deadline of 9/27/26 receive event shirts. Runners who complete at least one official lap receive a custom medal. Buckles are awarded to participants who reach 100 miles in the 24 hour race before the cutoff. Overall winners in each race receive a special award.

There is one large aid station at the start/finish with typical items such as chips, candy, fruit, cookies, electrolytes, water, and hot food; aid station food is for participants only. Competitors may set up personal pop-up tents or aid tables on race day morning. Camping is available at the campground and hotel options exist in Johnston City and nearby Marion. Entry fees are non-refundable; a pregnancy deferral to the following year is available. Discounts are offered for active military, veterans, and first responders. Littering or inappropriate behavior can lead to disqualification and possible banning. Visit the organization's website for the most recent information.