Colorado Multisport Calendar

XTERRA Laguna Beach

Crystal Cove State Park, California Crystal Cove State Park, CA, United States

The XTERRA Laguna Beach Triathlon is an epic off-road experience featuring stunning views of the Pacific. Participate in the short or long course triathlon, ocean swim, aquathlon or trail run. […]

Narrowleaf Lake Run

Boyd Lake State Park (Loveland) 3720 N County Road 11-C, Loveland, CO, United States

Brisk autumn running in Colorado – OH YEA! Join us for a family fun event with three distance options at the beautiful Boyd Lake State Park venue. What’s a “Narrowleaf” […]

Stocking Run 5K

Superior Superior, CO, United States

The Stocking Run is a festive 5K road run in the town of Superior on December 11th. All finishers will receive a stocking run finisher medal that doubles as a […]

Yeti Chase 5K & 10K

Bear Creek Lake Park (Lakewood) 15600 W. Morrison Road, Lakewood, CO, United States

The Yeti Chase 5K & 10K take place at beautiful Bear Creek Lake Park in Lakewood. This is the 13th year for the Yeti Chase, and it has sold out […]

Ralston Creek Half-Marathon & 5K

Arvada Arvada, CO, United States

The Ralston Creek Half-Marathon & 5K has become Colorado’s premier winter half marathon! Finisher Medals for Half Marathon finishers and a generous 4:30 cutoff time. Courses follow a scenic mix […]

Dash & Dine 5K

The Dash & Dine 5k run, Boulder's favorite spring tune-up run series at the beautiful Boulder Reservoir in Boulder, CO.

Dash & Dine 5K

The Dash & Dine 5k run, Boulder's favorite spring tune-up run series at the beautiful Boulder Reservoir in Boulder, CO.

Dash & Dine 5K

The Dash & Dine 5k run, Boulder's favorite spring tune-up run series at the beautiful Boulder Reservoir in Boulder, CO.

NOCO Half Marathon & 10K

Boyd Lake State Park (Loveland) 3720 N County Road 11-C, Loveland, CO, United States

Spring is the season of renewal and running. We hope you join us for a fun adventure that embodies the spirit of springtime at the beautiful Boyd Lake State Park! […]

Dash & Dine 5K

The Dash & Dine 5k run, Boulder's favorite spring tune-up run series at the beautiful Boulder Reservoir in Boulder, CO.

Boulder Sunrise Triathlon

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

Kick off your summer of racing in Boulder.

Boulder Peak Triathlon logo