Colorado Multisport Calendar

Pikes Peak Marathon

Manitou Springs Manitou Springs, CO, United States

The Pikes Peak Marathon, founded in 1956, is the oldest continually held marathon in the United States, taking runners from Manitou Springs, Colorado, to the summit of Pikes Peak at 14,115 feet, and back down for a total of 26.2 grueling mountain miles. It and its sister race, the Pikes Peak Ascent, each climb about […]

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. Post-race, join us for a cold brew at the Beer Garden. This event sold out last year, so register early to secure your spot!

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” you ask? The Narrowleaf Cottonwood Trees are the most densely populated tree species at Boyd Lake State park. We thought the name was fitting and […]

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 Christmas tree ornament! How fun is that! Runners will also receive a gender-specific technical running shirt, a printable finisher certificate, and free race photo downloads! […]

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 well before race day in all previous years. After chasing down the Yeti, runners wander the park's 2,500 acres, known for it's diverse bird and […]

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 of road and bike path through Arvada's beautiful west side. Long-Sleeve Gender-Specific Tech Shirts, hot cocoa, breakfast burritos from El Senor Sol Mexican restaurant, and […]

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! Choose from the Half Marathon (13.1 mile) or 10K (6.2 mile) for your run adventure. This course is on smooth paved walkways with about three […]

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 Peak Triathlon logo