Rocky Mountain Slam

Rocky Mountain Slam

The Rocky Mountain Slam event on September 25, 2026 takes place in Logan, Utah and is tied to The Bear 100 held at that location. The Bear 100 serves as the mandatory final race of the Rocky Mountain Slam series for 2026. Registration for the event closed on July 15, 2026.

Rocky Mountain Slam V2.0 requires competitors to complete at least four races, with The Bear 100 as the only required race. Other races that may count toward 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. Organizers note that many of these races use lotteries and that the series will not add more races unless another is removed. There will be no formal overall time record; an informal summation of a runner's fastest four runs including The Bear will be tracked.

The series traces back to the early 2000s and has changed over time. Bighorn 100 was added in 2003. Participation levels varied, with more finishers in earlier years and fewer after 2014. The series was not held in 2020. Versions and race additions were introduced in 2022, 2024, and 2026. Organizers require runners to register for the series to help cover costs and provide an award for finishers. Visit the organization's website for the most recent information.