Colorado Multisport Calendar

  • 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.

  • 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, […]

  • Littlefoot Triathlon

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

    Enjoy a fun late season tri at beautiful Bear Creek Lake Park in the Lakewood/Morrison area. Set at the base of the foothills, the Littlefoot Triathlon starts off with a 750 meter swim in Soda Lake, with water temps expected to be approximately 70 degrees. Next, a rolling bike 15K bike ride that covers nearly […]

  • 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

  • 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

    Nice, France Nice, HI, France

    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.

  • Last Call Triathlon

    Boyd Lake State Park (Loveland) 3720 N County Road 11-C, Loveland, CO, United States

    Yes! I want ONE MORE adventure!! Escape to the lake! The Last Call Triathlon will be an event you’ll look forward to all season long. Why? Beautiful mountain views, great weather and a family fun venue! Did we mention camping? Yup! There’s that too. Sitting on the east side of Loveland and southeast of Fort […]

  • IRONMAN World Championship – Men’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.

  • Ordinary Mortals Triathlon

    Pueblo 2200 Bonforte Blvd, Pueblo, CO, United States

    Ordinary Mortals Triathlon (OMT) is a reverse order sprint distance (5 km run, 12.5-mile bike, 300-yard pool swim) triathlon for all us "Ordinary Mortals" - from the first time triathlete to more competitive triathletes on a fun and challenging course. Bring the kids for the youth triathlon, Mini Mortals Triathlon, after the adult race. This […]

  • 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

  • IRONMAN 70.3 Boulder

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

    Presale Registration for 2023 IRONMAN 70.3 Boulder opens at 10am MT on Thursday, August 4, 2022.

  • 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 […]

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