Tri Boulder
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.
Events
12 events found.
Colorado Multisport Calendar
Events
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Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States
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Stroke & Stride
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesThe 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 reservoir dam on 8 Thursday evenings (plus one Wednesday evening) throughout the summer. Many participants make their open-water swimming debut in the beginner-friendly Stroke & […]
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Steamboat Lake Triathlon
Steamboat Lake State Park 61105 County Road 129, Clark, CO, United StatesAfter 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 […]
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Stroke & Stride
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesThe 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 reservoir dam on 8 Thursday evenings (plus one Wednesday evening) throughout the summer. Many participants make their open-water swimming debut in the beginner-friendly Stroke & […]
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Boulder Rez Marathon
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesThis amazing run course will take you alongside the Boulder Reservoir, remaining mostly on dirt roads and trails. The course is flat with only 200 feet of gain, and will provide views of the Boulder Reservoir and Rocky Mountains.
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Stagecoach Gravel Triathlon
Stagecoach Reservoir (Steamboat Springs) 25500 County Road 14, Oak Creek, CO, United StatesWe 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 […]
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Stroke & Stride
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesThe 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 reservoir dam on 8 Thursday evenings (plus one Wednesday evening) throughout the summer. Many participants make their open-water swimming debut in the beginner-friendly Stroke & […]
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Outdoor Divas Sprint Triathlon
Union Reservoir (Longmont) 461 County Road 26, United StatesThe 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.
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Boulder Sunset Triathlon
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesJoin 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, […]
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Littlefoot Triathlon
Bear Creek Lake Park (Lakewood) 15600 W. Morrison Road, Lakewood, CO, United StatesEnjoy 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 […]
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Desert’s Edge Triathlon Series
Highline Lake State Park 1800 11.8 Road, Loma, CO, United StatesDesert’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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Oktoberfest Sprint Triathlon
Union Reservoir (Longmont) 461 County Road 26, United StatesThe 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 […]
