$1,000 cash prize + buckles for 100 milers! Our race takes place just outside beautiful Estes Park Colorado at a private camp. The Backyard Ultra is a form of Ultra Trail race where runners must complete 4.167 miles in less than one hour, every hour, until only one runner remains to complete a lap. This runner is crowned the winner and only finisher, while all others will be marked as DNF. There is no predetermined end length or time - we go until only one remains.....
Rocky's Backyard is hosted on trails bordering Rocky Mountain National Park with roughly 500' of vertical gain per yard.
Custom Fractel beanie DNF or finishers award Stocked aid station
October in Rocky can present all four seasons in a day Average weather is 50s in the day, 20s at night and a 10% chance of major snow We are in the heart of the mountains - come prepared for anything and everything.
Oct 10, 2026
Distance — Backyard Ultra
Type — Running
10:00
$130.00
These values represent the 3-year monthly averages for October in Estes Park.
Learn more about the host city, Estes Park.
Estes Park is a statutory town in southwestern Larimer County, Colorado, United States. The town population was 5,904 at the 2020 United States census. Estes Park is a part of the Fort Collins, CO Metropolitan Statistical Area and the Front Range Urban Corridor. A popular summer resort and the location of the headquarters for Rocky Mountain National Park, Estes Park lies along the Big Thompson River. Landmarks include The Stanley Hotel and The Baldpate Inn. The town overlooks Lake Estes and Olympus Dam.
Read more launchRead what other athletes have to say about their experience at the Rockys Backyard Ultra.
Be the first to share your experience with the community!
Spotted an error or missing detail about the Rockys Backyard Ultra? Help us improve.
Explore other exciting events happening in this same region.
Hand-picked events we think you’ll love.
Sep 26, 2026
The Oktoberfest 5K is back again this fall offering an active start to a festive weekend. Lace up your running shoes an…
Read more
Sep 28, 2026
World's Best Marathon & Half Series! No Time Limits Great Food Award-Winning Medals Loony Community! We RUN this countr…
Read more
Sep 29, 2026
World's Best Marathon & Half Series! No Time Limits Great Food Award-Winning Medals Loony Community! We RUN this countr…
Read more
Sep 26, 2026
Welcome to the most beautiful race in Nebraska! Runners from all over the country have described us as the friendliest,…
Read more
