Colorado Multisport Calendar

  • Boulder Sunrise Triathlon

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

    Kick off your summer of racing in Boulder.

  • Boulder Peak Triathlon

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

    The Boulder Peak Triathlon, Duathlon & Aquabike on July 10th is one of the countries longest and most well-known triathlons. For the veteran or first time racer, this is THE can’t miss event of the summer triathlon season, and the crown jewel of the Colorado Triathlon Series. Racers are tackling the infamous “Olde Stage” Hill, […]

  • Tri Boulder

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

    As one of Colorado’s most popular summer triathlons, Tri Boulder offers many different multisport race distances, all in one eventful day! Join us for a full day of racing at the Rez.

  • Boulder Sunset Triathlon

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

    Join us for an unforgettable morning at the Boulder Reservoir. Although this race does not take place at sunset, it will take place at the end of the summer-- it's sister race is the Boulder Sunrise in June. Experience gorgeous views at the recently upgraded venue. All participants receive stellar race shirts and finisher medals, […]

  • Lake Nighthorse Sprint & Olympic Triathlons

    Lake Nighthorse 1795 C.R. 210, Durango, CO, United States

    Sprint Distance Triathlon - 750M Swim, 20km Bike, 5km Run Olympic Distance Triathlon - 1500M Swim, 40km Bike, 10km Run

  • 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 run Colorado Olympic Duathlon: 5k run, 23.5 mile bike, and a 10k run Colorado Aquabike: Will feature a 1500 meter swim and a 24.8m bike

  • Loveland Lake to Lake Triathlon

    North Lake Park (Loveland) 2750 N. Taft Ave., Loveland, CO, United States

    This event provides a beautiful venue. The transition area and lake are near North Lake Park. North Lake Park is a nice setting for competitors and families. It has a children’s train that operates throughout the day and is adjacent to Benson Sculpture Park, which is the site of Loveland’s annual Sculpture in the Park […]

  • Boulder Sunrise Triathlon

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

    Kick off your summer of racing in Boulder.

  • Boulder Peak Triathlon

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

    The Boulder Peak Triathlon, Duathlon & Aquabike on July 10th is one of the countries longest and most well-known triathlons. For the veteran or first time racer, this is THE can’t miss event of the summer triathlon season, and the crown jewel of the Colorado Triathlon Series. Racers are tackling the infamous “Olde Stage” Hill, […]

  • Tri Boulder

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

    As one of Colorado’s most popular summer triathlons, Tri Boulder offers many different multisport race distances, all in one eventful day! Join us for a full day of racing at the Rez.

  • Boulder Sunset Triathlon

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

    Join us for an unforgettable morning at the Boulder Reservoir. Although this race does not take place at sunset, it will take place at the end of the summer-- it's sister race is the Boulder Sunrise in June. Experience gorgeous views at the recently upgraded venue. All participants receive stellar race shirts and finisher medals, […]

  • Desert’s Edge Triathlon Series

    Highline Lake State Park 1800 11.8 Road, Loma, CO, United States

    Desert’s Edge Triathlon Series features two days of racing, including Sprint and Olympic distance road triathlons, and a sprint off-road triathlon for open and collegiate racers.

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