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Rocky's Backyard Ultra

Name: Rocky's Backyard Ultra
Start: 2025-10-04
End: 2025-10-04
Location: Estes Park

Estes Park, United States • 4 Oct 2025

Rocky's Backyard Ultra is an exciting ultra trail running event held in Estes Park, Colorado, at the YMCA of the Rockies. This unique race format challenges participants to complete 4.167 miles every hour until only one runner remains. The course features stunning Rocky Mountain scenery, with approximately 500 feet of elevation gain per lap.

Runners can expect a variety of weather conditions in October, adding to the adventure. The event includes a cash prize for 100-milers, custom awards, and access to amenities for participants and their families. It's a thrilling experience for both competitors and spectators alike. Visit the organization's website for the most recent information.

United States Colorado Estes Park

Race information

Website Registration

4 mi

500 m+

4.167 Miles

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

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...

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