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Operation Century - Irwin, iD

Name: Operation Century - Irwin, iD
Start: 2024-08-30
End: 2024-08-30
Location: Irwin

Irwin, United States • 30 Aug 2024

Operation Century is a challenging 105-mile ruck event taking place at the South Indian Creek Trailhead in Irwin, Idaho. Participants must complete five loops, each approximately 21 miles, which includes a significant elevation gain of around 23,000 feet. To earn the exclusive GBF Operation Century Dog Tag, candidates must carry a minimum of 20 lbs and finish within 48 hours.

The event emphasizes preparation, requiring essential gear and emergency supplies. Checkpoints will provide water and snacks, but participants must be self-sufficient for hydration and nutrition. A maximum of 30 candidates can register for this demanding adventure. Visit the organization's website for the most recent information.

United States Idaho Irwin

Race information

Website Registration

105 mi

105 Mile Ruck

Visit the organization's website for the most recent information.

Trail runs nearby

Sat - Sun Aug 8-9

Wyoming Range 100-Mile Endurance Run

Hoback - 27 mi from Irwin

108 mi

The Wyoming Range 100 is a point-to-point endurance run held in the Bridger-Teton National Forest. The event is scheduled for August 7-9, 2026, and runs from Middle Piney Lake to Box Y Ranch. The published distance is 108 miles with a 48-hour cutoff. Registration opens on February 1. The race is li..