Washington
Washington Triathlon Calendar 2026-2027
Monthly updates for Washington
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Explore the best triathlons in Washington for 2026-2027! Our updated list features 31 exciting races across the region. Find your next race in Washington below and join the running community at these great events!
April 2026
The Pinnacle Peak Duathlon is a low-frills, early-season race in Enumclaw's farm country. With a 125-participant limit, it features chip timing, basic snacks, and mostly flat roads.
Experience a flat and fast course at Vancouver Lake Regional Park. Choose from a duathlon or various running distances on smooth pavement with parking included in your registration.
May 2026
Location and Format
The Rage in the Sage Duathlon takes place at Kiona Vineyards and Winery in Benton City. The event is a sanctioned USA Triathlon (USAT) race, so a USAT license is required for all participants. Registration is online only, with no..
Practice your triathlon skills in a supportive non-competitive environment at Vancouver Lake. This learning focused event features instructional clinics and a choice of sprint or olympic training distances.
Experience a scenic super sprint triathlon at Lake Wilderness featuring a lake swim and a run along the Cedar River Trail. Participants enjoy a well supported course with distances for individuals, teams, and youth athletes.
A USA Triathlon sanctioned Olympic distance triathlon at Bennington Lake on May 17, 2026. It features a 1.5K swim, 40K bike and 10K run, multiple relay and specialty divisions, and a 300 participant cap.
A multi-distance triathlon at Cascade Lake Beach on June 7, 2026, with super sprint and sprint courses, relay options, and a youth Splash n Dash; timing records swim, bike, run, two transitions and overall.
America's Original SwimRun takes place on Orcas Island in Washington. Choose from World Series, Sprint, or Experience distances, competing solo or as a team.
ÖTILLÖ Swimrun Orcas Island USA offers three distances on a scenic and hilly island course in Washington State. Racers alternate between trail runs and lake swims, navigating the landscape of Orcas Island. The event requires specific gear and teamwor..
Experience a USAT sanctioned triathlon in Medical Lake featuring a swim in clear waters and a fast countryside bike course. Choose between Sprint and Super Sprint distances with festive music and post race refreshments for all athletes.
June 2026
Experience a scenic triathlon or duathlon at Lake Wilderness Park featuring a lake swim rolling back country bike roads and trail running with views of Mount Rainier.
A half iron distance triathlon in Vantage, Washington, featuring a swim in the Columbia River, a bike ride toward Ellensburg, and a run to Wanapum Dam. Participants receive a custom windbreaker and finisher medal. Safety support includes lifeguards a..
Experience a multisport weekend in Medical Lake featuring triathlon duathlon and 5K run options. Compete on paved roads and scenic trails around Waterfront Park during this annual community celebration.
Black Diamond Triathlon in Enumclaw on June 27, 2026 offers Olympic, Sprint, AquaBIke, Super Sprint and relay options. The swim is in Deep Lake and bike and run courses pass through Ravensdale, Selleck and Enumclaw farmland.
Experience a classic Pacific Northwest triathlon at Lake Padden Park in Bellingham. Compete individually or as a relay team in a half mile swim, twenty-one mile bike ride, and five mile run.
Experience a classic Washington triathlon featuring a quarter mile swim, an 11 mile hilly bike ride, and a 4 mile run around Pine Lake. Join as an individual or part of a relay team in Sammamish.
July 2026
Experience a scenic multi sport event at Wildcat Lake Park featuring a swim followed by a flat road cycle and a trail run. This holiday classic includes individual races, relays, and a youth Splash n Dash.
Event Overview
The Righteous Richland Sprint Triathlon takes place in July. It is a multisport event with a course covering a 0.5 mile swim, a 12 mile mountain bike ride, and a 3 mile run. The event is held at Howard Amon Park in Richland, Washington..
Experience Seattle's premier urban triathlon at Seward Park with flat and fast courses along the shores of Lake Washington. Choose from sprint, super sprint, or youth distances in a scenic setting near downtown.
Aquaman in Richland on July 31, 2026 features a half mile swim in the Columbia River followed by a three mile run along park foot paths. Team categories for athletes aged 13 to 18 serve as fundraisers for local swim and cross country teams.