Popeye's Backyard Ultra

APR
3
2027
A backyard ultra at Greenland Open Space in Larkspur, CO, run as repeated 4.167 mile (6.706 km) loops until one runner completes a final solo loop and wins.
Sat 3 Apr 2027
7 kilometers

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About the race

Popeye's Backyard Ultra is a last-runner-standing backyard ultra taking place on April 3, 2027, at Greenland Open Space in Larkspur, Colorado. The event is organized by Stoke Fine Racing and runs on public trails within Douglas County Open Space.

The race uses a single loop called the yard. Each yard is 4.167 mile (6.706 km) of trail, consisting of dirt and crushed gravel. Greenland Open Space covers about 1,200 acres on the Palmer Divide, with rolling grassland, oak draws, ponderosa and rocky mesas and the Front Range on the western horizon. Early April conditions can be variable; weather may range from warm to snowy and the grass is often gold at that time of year.

The format follows official backyard ultra rules. At the start of each yard all remaining participants begin together; a yard must be completed within the hour to be eligible for the next start. There is no set distance or overall time limit. When only one runner completes a final yard alone, that runner is the winner; if no runner can complete one more yard than everyone else, there is no winner. Yards completed are recorded and reported.

Support is staged at the corral between yards. Crews are welcome, the aid station is staffed until the last runner finishes, parking is at the Greenland trailhead lot, and port-o-lets are on site. Headlamps are required for any yard that starts after sunset. The field is limited to 200 runners. The race is registered with the Backyard Ultra Association and results and yard counts are reported after the event. Visit the organization's website for the most recent information.

Events nearby

A six hour timed loop event at Sandstone Ranch Open Space in Larkspur CO with 8 mile loops, aid every four miles and finisher medals.
A winter out and back 21.6 mile race near Sedalia CO with 2,627 ft of climbing, mandatory gear, aid stations, and a 200 runner field limit.
Trail races at Greenland Open Space near Larkspur offer four dirt-trail distances with looped courses, aid stations, timing, and awards.
Invitation-only Colorado endurance event on May 1, 2027 with a 40-person field, unpublished course, heavy off-trail navigation, minimal aid, and mandatory map and compass skills.
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