Colorado Multisport Calendar

  • Oktoberfest Sprint Triathlon

    Union Reservoir (Longmont) 461 County Road 26, United States

    The Oktoberfest Sprint Triathlon features a half mile lake swim, a flat and fast single loop 12.9 mile bike, and finishes with a 3.1 mile run on a gravel road that hugs the lake. Please see course maps for a full description. Overall this is a beginner friendly course, and sets up very well for […]

  • IRONMAN World Championship – Women’s Race

    Kailua-Kona, Hawaii Kailua-Kona, HI, United States

    The very best will embark on a 140.6-mile journey that presents the ultimate test of body, mind and spirit. Through decades of stellar athlete performances, inspirational participants and emotional memories, the IRONMAN World Championship has etched a reputation as the pinnacle of the triathlon landscape and an iconic global sporting event.

  • Chilly Cheeks Duathlon Series

    Hobie Park 4800 S. Dayton St., Greenwood Village, CO, United States

    Denver's low key, low cost multisport winter series!!! The Chilly Cheeks Winter Series is composed of three fun run-bike events at the Cherry Creek Reservoir. We provide a marked and marshaled course, fast & accurate chip timing, light refreshments, and some fun mid-winter competition in the heart of Denver. When you enter the three race […]

  • Chilly Cheeks Duathlon Series

    Hobie Park 4800 S. Dayton St., Greenwood Village, CO, United States

    Denver's low key, low cost multisport winter series!!! The Chilly Cheeks Winter Series is composed of three fun run-bike events at the Cherry Creek Reservoir. We provide a marked and marshaled course, fast & accurate chip timing, light refreshments, and some fun mid-winter competition in the heart of Denver. When you enter the three race […]

  • 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 […]

  • Frisco Gold Rush

    Frisco Nordic Center 616 Recreation Way, Frisco, CO, United States

    The Annual Frisco Gold Rush is the longest running Nordic event in Colorado, and consists of classic and skate races open to skiers of all ages and abilities. Gold Rush is where the past and present come together to celebrate our historical mining heritage and embrace our snowy Nordic culture. KIDS 1K FUN SKI 5K […]

  • Audi Power of Four Ski Mountaineering

    Aspen Snowmass Aspen-Snowmass, CO, United States

    The Audi Power of Four Race Series is a premier endurance race series utilizing the unique and amazing terrain of each of the four Aspen Snowmass mountains. Each race is designed to test the limits and skills of both elite and recreational athletes.

  • Frisco Freeze Fat Bike Race

    Frisco Nordic Center 616 Recreation Way, Frisco, CO, United States

    Join us for the Annual Frisco Freeze Fat Bike Race at the Frisco Nordic Center. This is your one chance this winter to ride your fat bike on the Frisco Nordic trails and the Frisco Freeze is back in 2022 with an all new course! This fun course showcases amazing views of Buffalo Mountain 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 […]

  • Chilly Cheeks Duathlon Series

    Hobie Park 4800 S. Dayton St., Greenwood Village, CO, United States

    Denver's low key, low cost multisport winter series!!! The Chilly Cheeks Winter Series is composed of three fun run-bike events at the Cherry Creek Reservoir. We provide a marked and marshaled course, fast & accurate chip timing, light refreshments, and some fun mid-winter competition in the heart of Denver. When you enter the three race […]

  • Barkin’ Dog Duathlon

    Cherry Creek State Park 4201 South Parker Road, Aurora, CO, United States

    Participants can choose from the standard 5K Run, 34K Bike, 5K Run event or the short course which challenges participants with a 1.2 Mile Run, 11 Mile Bike, 5K Run.

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