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Iron Will Grand Slam

Enterprise, United States • 20 Apr 2025

The Iron Will Grand Slam is an ultimate ultra-running challenge taking place in 2025, inviting participants to complete four 100-mile races in a single season. The races include Earth Day Buckle Mania, Iron Will Backroads, Honey Badger Road Race, and the final Iron Will event. For a registration fee of $600, runners can participate in all four races, earning unique finisher buckles for each. Additionally, participants have the option to commemorate their achievement with a custom plaque. This event is designed for those looking to test their endurance and join an elite group of ultra-runners. Visit the organization's website for the most recent information.

United States Kansas Enterprise

Race information

Registration Facebook
100 mi
100 Miles
Visit the organization's website for the most recent information.
Trail runs nearby

Earth Day Buckle Mania

Abilene - 5 mi from Enterprise

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Earth Day Buckle Mania is a unique running event taking place from April 25 to 27, 2025, in Abilene, KS. Participants can choose from 12-hour, 24-hour, or 48-hour races, all set on a certified 1.8228-mile paved loop in a scenic private park. Runners can earn multiple buckles for completing various d..

Iron Will Backroads

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Iron Will Backroads is an exciting running event taking place in Enterprise, Kansas, featuring three challenging distances: 100 miles, 100 kilometers, and 50 kilometers. The course consists of a 12.5-mile loop that includes both gravel roads and rail trails, with participants completing multiple loo..

Iron Will 100 - Junction City, KS

Junction City - 17 mi from Enterprise

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