Rocky Mountain Slam
Logan, United States • 25 Sep 2026
Event details
Rocky Mountain Slam is scheduled for September 25, 2026 in Logan, Utah, at 1400 E. 350 S. Registration for the event opens January 1, 2026. The event is organized as a series that centers on The Bear 100 as the final race.
Series format and recent history
The Rocky Mountain Slam V2.0 requires runners to complete at least four 100-mile races, with The Bear 100 mandatory. Optional races in the series include Scout Mountain 100, Bighorn 100, Hardrock 100, Leadville 100, Wasatch Front 100, Ouray 100, Wyoming Range 100, High Lonesome 100, and Crazy Mountain 100. The series will keep an informal summation of a runner’s fastest four finishes (including The Bear); there will not be a formal overall time record. A paid registration is required for runners who intend to compete in the series to cover organizing costs and to provide an award for finishers.
Key points in the series history: Bighorn 100 was added in 2003; Ouray 100 substituted for Hardrock in 2019; the series was not held in 2020; RMS V2.0 was announced in 2022; Scout Mountain 100 was added in 2024; High Lonesome 100 and Crazy Mountain 100 were added in 2026. Visit the organization's website for the most recent information.