Colorado Multisport Calendar

Triathlon

Events

Events Search and Views Navigation

Event Views Navigation

Filters

Changing any of the form inputs will cause the list of events to refresh with the filtered results.

Today

  • BBSC Endurance Sports

    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.

  • Without Limits Productions

    Steamboat Lake Triathlon

    Steamboat Lake State Park 61105 County Road 129, Clark, CO, United States

    After last summer this event instantly became a personal favorite for our staff, volunteers, and athletes - come find out why! We couldn't be more excited about this course, this lake, and the overall experience. The swim starts out in the surprisingly warm waters of Steamboat Lake (74 degrees average race temp), then athletes transition […]

  • IRONMAN

    IRONMAN Lake Placid

    Lake Placid, New York Lake Placid, NY, United States

    When you think of the world's greatest, most sought after triathlons, a very short list of events from around the world comes to mind. The best of the best-triathlon royalty. IRONMAN Lake Placid is one of those special events, an icon of the sport that draws in triathletes from all over the world to test […]

  • Without Limits Productions

    Stagecoach Gravel Triathlon

    Stagecoach Reservoir (Steamboat Springs) 25500 County Road 14, Oak Creek, CO, United States

    We didn't get the chance to launch this race in 2020, but that didn't diminish our passion for this brand new style of triathlon! To say this race is “unique” would be an understatement! Limited to just 250 athletes, we're excited to announce the first ever gravel triathlon to the Colorado triathlon landscape! This event […]

  • IRONMAN 70.3 Boulder

    IRONMAN 70.3 Boulder

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

    2022 IRONMAN 70.3 Boulder will now offer qualifying slots to both 2022 Intermountain Healthcare IRONMAN 70.3 World Championship and slots to 2023 IRONMAN 70.3 World Championship in Lahti, Finland.

  • XTERRA

    XTERRA Portland

    Portland, Oregon Portland, OR, United States

    For a novice looking for a new challenge or a seasoned veteran looking to match up against the country's best athletes, 2022 XTERRA Portland is the place to test your limits. 26 World Champs Slots

  • Longmont

    Longmont Try a Tri

    City of Longmont Recreation Center 310 Quail Rd, Longmont, CO, United States

    Join us for two triathlon races! Featuring scenic running and biking courses starting and finishing at the Longmont Recreation Center, 310 Quail Rd., these races are a perfect introduction to the sport for kids or adults looking to try something new! The year, we have two events: the 17th Annual Kids Only Triathlon and 10th […]

  • Without Limits Productions

    Outdoor Divas Sprint Triathlon

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

    The Outdoor Divas Sprint Triathlon features a half mile lake swim, a flat and fast single loop 12.4 mile bike, and finishes with a 3.1 mile run on a gravel road that hugs the lake.

  • XTERRA

    XTERRA Lake Tahoe

    Lake Tahoe, California Lake Tahoe, CA, United States

    An all-time classic off-road triathlon course! Triathletes will start from a new location at Sand Harbor State Park in Lake Tahoe, one of the purest and deepest lakes in North America. Trail Runs take place on the same day with the course starting and finishing at the Village Green in Incline Village, NV. 26 World […]

  • BBSC Endurance Sports

    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, […]

  • XTERRA

    XTERRA Tremblant

    Domain St-Bernard, Quebec, Canada Domain St-Bernard, Quebec, Canada

    Welcome to XTERRA Tremblant. This will be year three of this amazing off-road event in the heart of Quebec's triathlon mecca. The venue is a unique ecological preserve that is transformed for one weekend only every year into an off-road triathlon getaway.

XTERRA Wetsuits