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Rocky Mountain Slam

Logan, United States • 27 Sep 2025

The Rocky Mountain Slam is a challenging ultramarathon series held in the Mountain West region, centered around Logan, Utah. It requires participants to complete at least four 100-mile races, with the Bear 100 as the mandatory final race. Other optional races include the Scout Mountain 100, Bighorn 100, Hardrock 100, Leadville 100, Wasatch Front 100, Ouray 100, and Wyoming Range 100. The series celebrates the rugged terrain and high-altitude courses of the Rocky Mountains, offering runners a grueling but rewarding experience. The Slam emphasizes endurance and mountain running culture, with a flexible format to accommodate race lotteries and maximize participation. Visit the organization's website for the most recent information.

United States Utah Logan

Race information

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

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Bear 100 Endurance Run

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UTMB Index