Weld Your Mettle

Frank State Wildlife Trailhead 32560 Colorado Blvd, Windsor, CO, United States

Welcome to the annual Weld Your Mettle Ultra: 50K, Heavy Marathon, Heavy Half Marathon, and 7k run, walk or ruck, brought to you by the run.Windsor Race Series. Held on […]

Canceled Colorado Run

Spring Canyon Park 3156 S Overland Trail, Fort Collins, CO, United States

Celebrate Memorial Day weekend with the Colorado Run 5K/10K! Walk, Jog, Run, Race, or Ruck the Totally Tough 10k along Horsetooth Reservoir or enjoy the flat and fast 5k in […]

$25 – $55

Valley Bottom Rio Trio

State Ave River Trail Access 6901 N River Rd, Alamosa, CO, United States

Alamosa Parks and Recreation and Adams State Adventure Programs are partnering to bring the San Luis Valley the first annual “Valley Bottom Rio Trio”; an adventure-style triathlon race within the City of Alamosa on June 12th. This fully chip-timed race will feature an 8-mile trail bike ride, a 3-mile paddle on the Rio Grande, and a 5k run.

Front Range Classic

The Englewood Campus Stadium 3800 S Logan St, Englewood, CO, United States

Denver Athletics and Boulder Road Runners are teaming up to bring you a meet that will determine which city has the best Track & Field team in Colorado! The Front […]

Angel Run 5K/10K

Red Leg Brewing Company 4630 Forge Rd, Suite B, Colorado Springs, CO, United States

Please join us on Memorial Day for the Annual Angel Run in support of the local, veteran-owned 501c3 non-profit organization, Angels of America's Fallen! Gather at Red Leg Brewing for […]

$30

Memorial Day 5K

Imperial Memorial Gardens Cemetery 5450 CO-78 West, Pueblo, CO, United States

Join us for our Memorial Day 5K Fun Run & Walk at Imperial Memorial Gardens Cemetery and Funeral Home, honoring our fallen heroes while supporting victims of domestic violence.  Registration […]

REVEL Rockies Marathon

Bandimere Speedway 3051 S Rooney Rd, Morrison, CO, United States

This incredibly fast and remarkably beautiful downhill road race takes runners from the forests and canyons of the Rocky Mountains to the foothills of Denver, Colorado. Featuring a perfectly smooth […]

Latino Ultra Nature Adventure

Golden Gate Canyon State Park Crawford Gulch Rd, Black Hawk, CO, United States

The 2nd Annual Latino Ultra Nature Adventure (LUNA) is a culturally relevant and equity driven new kind of Ultra powering the physical and mental health that comes from the mix of athletics, […]

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