Boulder Sunrise Triathlon
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesKick off your summer of racing in Boulder.
Colorado Triathlete
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Colorado Multisport Calendar
Stroke & Stride
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesThe Boulder Stroke & Stride enters its 21st season in 2022, and 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 […]
Frisco Triathlon
Frisco Bay Marina 267 Marina Road, Frisco, CO, United StatesAre you looking for a new challenge this summer? Register for the 8th Annual Frisco Triathlon featuring stand-up-paddle boarding, mountain biking, and trail running. This twist on a triathlon is open to all ability levels and encourages athletes to take on a new multi-sport event. The Frisco Triathlon was named “Best Triathlon” in Elevation Outdoors […]
Pagosa Duathlon
Pagosa Springs Pagosa Springs, CO, United StatesRace routes integrate beginner and intermediate levels of single-track trails, dirt and gravel roads. The venue of the San Juan National Forest could not be more perfect for athletes as they trek through aspen groves, grassy fields, and the dreaded rocky Piedra Stock driveway. The course is fast, testing each competitor’s endurance, speed and ability.
Boulder Peak Triathlon
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesThe 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, […]
Stroke & Stride
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesThe Boulder Stroke & Stride enters its 21st season in 2022, and 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 […]
XTERRA Beaver Creek
Beaver Creek Beaver Creek, CO, United StatesXTERRA USA Championship in Beaver Creek, Avon, Colorado
Stroke & Stride
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesThe Boulder Stroke & Stride enters its 21st season in 2022, and 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 […]
Lonetree Sprint Triathlon
Lonetree Reservoir (Loveland) Lonetree Reservoir, Loveland, CO, United StatesThe inaugural Lone tree Sprint was a success and we’re happy to be continuing this event on July 23rd! We LOVE this event, great mid-season race, open water swim and bike course with minimal traffic and a flat out and back run on asphalt and dirt. With a slightly longer bike than your traditional Sprint, […]
Tri Boulder
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesAs 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.
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 […]
IRONMAN Lake Placid
Lake Placid, New York Lake Placid, NY, United StatesWhen 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 […]
