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  • 4Corners River Sports Red Hot Relay

    Durango Nordic 49786 U.S. 550, Durango, United States

    The Red Hot Relay is DNSC’s annual youth programs fundraiser, where teams of three take on a lively relay race and just about anything goes. We encourage everyone to jump […]

  • Snow Mountain Stampede Classic Races, GCNRS #8

    Snow Mountain Ranch 1101 Co Rd 53, Granby, CO, United States

    Venue: Snow Mountain Ranch Nordic trails. Race HQ will based out of the Camper’s Hub building. Event: Classic, Long Course 50km, Short Course 25km, 12.5km (not series eligible), Junior 3km. […]

  • Coke Race #2

    Durango Nordic 49786 U.S. 550, Durango, United States

    This long-standing Durango tradition brings skiers together to celebrate winter from start to finish! Race Options: 9K (Adults) 3K (Kids) 1.5 (Kids

  • Frisco, Colorado

    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 […]

  • Vail Nordic Town Series Race

    Maloit Park in Minturn Minturn, United States

    The Vail Nordic Town Series Races are put on by the Ski & Snowboard Club Vail. Skiers of all ages and abilities are welcome to attend! Day-of, on-site registration | […]

  • Three Creeks Half Marathon

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

    Racing Underground brings you an amazing half marathon this spring! The Three Creeks Half Marathon features a half marathon course that is flat, fast and scenic! Travel on foot through […]

  • BBSC Endurance Sports

    Boulder Rez Half

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

    This spring race features a spectator-friendly Half Marathon, 10K and 5K course. Attracting athletes from all over the west due to its phenomenal scenery, glamorous finisher medals, perfect running temperatures […]

  • NOCO Half Marathon & 10K

    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! […]

  • BBSC Endurance Sports

    Harvest Moon Long Course Triathlon

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

    The Harvest Moon Half Distance Triathlon: This event takes place at the beautiful Boulder Reservoir on May 31st, 2026 and we couldn't be more excited to be back for another […]

  • Without Limits Productions

    Stroke & Stride

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

    The Boulder Stroke & Stride offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the […]

  • Without Limits Productions

    Colorado Triathlon

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

    Colorado Sprint Triathlon: 750 meter swim, rolling and fast 17 mile bike, and finishes with a 3.1 mile run Colorado Olympic Triathlon: 1500m swim, 23.5 mile bike, and a 10k […]

  • Without Limits Productions

    Stroke & Stride

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

    The Boulder Stroke & Stride offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the […]

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