Iron Will 100 - Junction City, KS

SEP
19
2026
An ultramarathon held in Junction City with 100 mile, 50 mile, 50K and a 36 hour option on a mostly shaded, flat river trail with manned aid stations and finisher buckles for all events.
Sat 19 Sep 2026
100 miles 50 miles 50 kilometers

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Iron Will 100 : Junction City, KS

Iron Will 100 offers multiple timed and distance options at 5203 N HWY 57 in Junction City, Kansas. The event includes the following distances:

  • 100 Miler
  • 50 Mile
  • 50K
  • 36 Hour option

The 100 mile course is ten out-and-back laps on a flat, fast river trail with about 75% shade. The 50 mile is five out-and-backs. The 50K uses a short out-and-back followed by three longer out-and-backs for a roughly 31 mile total. Manned aid stations are located every 5 miles.

All four events award finisher buckles, with the 100 mile buckle being the largest. Top female and male finishers in each event receive awards. Time limits apply: a 36 hour cutoff for the 100 mile, and 34 hour cutoffs for both the 50 mile and the 50K.

Shirt orders are guaranteed for runners registered by August 27; organizers may order extras but cannot guarantee size availability after that date. The event has a no-refund policy; deferrals to the following year are allowed up to 30 days before the event. Event entries and event-day changes are final once the races have started. The 36 hour option allows continued running without a DNF and awards based on achieved mileage. Visit the organization's website for the most recent information.

100 mi
100 Miler
50 mi
50 Mile
50 km
50k
36 Hour
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