Arrowhead Endurance Run
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Arrowhead Endurance Run : October 10-11, 2026
The Arrowhead Endurance Run is a multi-distance timed event held at Arrowhead Lake Campground in Johnston City, IL, about 15 minutes north of Marion. The event uses a certified 2.07 mile loop around the lake. The loop surface is about 99% gravel with a short concrete section at the boat ramp and under 50 feet of elevation change per loop. Chip timing is provided by SoILL Racing.
Available timed events include:
- 24 Hour race
- 24 Hour Relay
- 12 Hour race (day)
- 12 Hour race (night)
- 6 Hour race
- 3 Hour race
Camping is available at Arrowhead Lake Campground. Several hotels in Marion are listed as about 15 minutes from the venue. One large aid station is located at the start/finish area and offers standard aid station fare, an electrolyte option, water, and hot food throughout the event. Participants with specific dietary needs are advised to bring their own supplies. Participants may set up a personal pop-up tent or aid station on race morning.
Finisher items and awards include shirts for finishers registered before the shirt deadline of 9/27/26, a custom medal for each runner who completes at least one official lap, buckles for 100 mile finishers in the 24 hour race who meet the event cut-off, and special awards for overall winners.
Entry fees are non-refundable and entries cannot be transferred to another year. A pregnancy deferral option allows a full fee deferral to the following year. Littering or inappropriate behavior toward staff or volunteers may result in disqualification or future event bans. Visit the organization's website for the most recent information.
