Iron Will Backroads

Enterprise, United States • 16 May 2026

Iron Will Backroads - May 16, 2026

Iron Will Backroads takes place in Enterprise, KS. The event offers the following distances:

  • 50K
  • 100K
  • 100 Mile

Entry fees listed are $125 for the 50K, $175 for the 100K, and $225 for the 100 Mile. Registration closes on Wed, May 13 at 11:59 PM CT. To be guaranteed a shirt, registration must be completed by 04/23/2026. All participants receive a tri-blend shirt. Awards are given to male and female winners in each race, and finisher buckles are provided to all finishers.

Course and logistics

The full course is 100.35 miles made up of nine 11.15-mile loops. There is a manned aid station at mile 6 of each loop. The route is on gravel roads and a rail trail with very little asphalt. The rail trail section includes an active historic train along the trail.

Pacers are allowed starting on loop #6; only one pacer at a time is permitted and all pacers must sign a waiver. No distance drop-downs or changes are allowed after the race has begun. The event offers 100% deferrals within 30 days of the event without requiring a reason. Visit the organization's website for the most recent information.

Race information

100 mi
100 Mile
100 km
100k
50 km
50k
Visit the organization's website for the most recent information.
Trail runs nearby

Iron Will 100 in Junction City KS offers 100 mile, 50 mile, 50K and 36 hour options on a flat, fast river trail with about 75% shade. Frequent aid stations, finisher buckles and a supportive out and back course make this a memorable ultra.