Iron Will Grand Slam
APR
24
2026
The Iron Will Grand Slam challenges runners to complete four distinct 100-mile ultras in one season. Conquer Earth Day Buckle Mania, Iron Will Backroads, Honey Badger Road Race, and Iron Will to earn individual buckles and a massive custom plaque.
Fri 24 Apr 2026
Iron Will Backroads
Iron Will
Honey Badger Road Race
Earth Day Buckle Mania
Always double-check with the organizer's website! This page may contain affiliate links.
Iron Will Grand Slam 2026
The Iron Will Grand Slam is a series of four separate 100-mile ultramarathon races to be completed within a single season.
Races in the series
- Earth Day Buckle Mania on April 24.
- Iron Will Backroads on May 16, featuring gravel roads and rail trails.
- Honey Badger Road Race on July 11.
- Iron Will on September 19.
The series registration fee for all four races is $750. Finishers of each individual race receive a unique buckle. Those who complete all four races in the Grand Slam receive a custom plaque measuring 15 by 12 inches, which includes their name and finishing times. There are no refunds or deferrals for this discounted series entry. Visit the organization's website for the most recent information.
100 mi
Iron Will Backroads
100 mi
Iron Will
100 mi
Honey Badger Road Race
100 mi
Earth Day Buckle Mania
