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!
August 2026
A sprint triathlon at Sullivan Lake in the Colville National Forest near Ione, Washington. Swim in the lake, bike along Sullivan Lake Road and run out to Harvey Creek Bridge, with participant shirts, swim caps, bibs and a finisher medal for finishers..
A weekend triathlon and endurance sports festival in Vancouver, WA featuring Sprint and Olympic triathlons, duathlons, aqua bike and paddle events, Friday 5K and 10K runs, a Kids Triathlon, women's sprint options and virtual races.
A women only triathlon and fitness festival at Frenchmans Bar in Vancouver WA offering sprint triathlon, duathlon, Aquabike, a 5 km run and a kids tri as part of a weekend of multisport events that benefits a regional blind athletes organization.
A one-day triathlon at Lake Meridian Park in Kent, Washington on August 15, 2026 offering Olympic, Sprint, Super Sprint and relay formats. Finishers receive medals and top age-group athletes earn pint glasses; race T-shirts are guaranteed for registr..
A non-competitive multisport event on Kenmore's waterfront combining a swim, bike, run and a paddle leg. Participants may enter solo or in relays up to four people; registration includes a t-shirt and entry into a prize drawing.
A one-day triathlon in Richland featuring Olympic and sprint distances plus 3-person relay divisions, with a river swim, looped bike and run courses, chip timing, limited field size, and online-only registration.
A sprint triathlon at Beaver Lake in Sammamish with a quarter mile swim, a roughly 13.4 mile bike that climbs Duthie Hill, and a 4.3 mile run. USAT membership is required and registration includes a race T-shirt and pasta feed.
A multi-distance triathlon at Allan Yorke Park on August 30, 2026, with swim, bike, and run courses around Lake Tapps and Pierce County. The event serves as the RTB Summer Series finale and is part of the Trifecta Trident challenge.
September 2026
A sprint triathlon at Rattlesnake Lake with a 1/4 mile swim, a 10 mile mixed road and trail bike on the Palouse to Cascade trail, and a 4 mile run. Relay teams are permitted and relay members must hold USAT membership.
A four leg endurance event around Port Angeles combining mountain biking, kayaking, road cycling and a 10K run, based at Pebble Beach Park. Open to solo racers and relay teams for participants ages 15 and up.