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Rocky's Backyard Ultra

Estes Park, United States • 4 Oct 2025

Rocky’s Backyard Ultra is held at the YMCA of the Rockies Estes Park Center in Estes Park, Colorado. Runners must complete 4.167 miles in under one hour each lap, with the field reduced to a single finisher as the race continues until no others remain. The course loops around the boundary of RMNP on 100% Rocky Mountain singletrack, averaging about 500 feet of ascent per lap and ranging in altitude from about 7,930 to 8,060 feet. Set among mountain scenery, Glacier Creek Trail segments, beaver ponds, and wildlife. Perks include a $1,000 prize plus buckles for 100-milers, a beanie, finishers award, stocked aid station, and YMCA crew access. Visit the organization's website for the most recent information.

United States Colorado Estes Park

Race information

Website Registration
4 mi
500 m+
Lap
Visit the organization's website for the most recent information.
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