Washington
Washington Triathlon Calendar 2025-2026
Explore the best triathlons in Washington for 2025-2026! Our updated list features 12 exciting races across the region. Find your next race in Washington below and join the running community at these great events!
August 2025
The Lake Tye Triathlon, held annually at Lake Tye Park in Monroe, Washington, is a USAT-sanctioned event known for its flat and fast course, making it ideal for beginners and elite athletes alike. The..
The Columbia River Triathlon, held in Vancouver, Washington, is a vibrant summer weekend endurance sports festival set along the scenic Columbia River. The event features a variety of races including..
The Girlfriends Triathlon & Fitness Festival is an all-women’s event held annually at Frenchman's Bar Regional Park in Vancouver, Washington, along the scenic Columbia River. The festival features a v..
The Lake Meridian Triathlon, held at Lake Meridian Park in Kent, Washington, is a popular Pacific Northwest event featuring Olympic, Sprint, and Super Sprint distances, along with Sprint and Olympic r..
The Bellingham Off Road Triathlon, held in Bellingham, Washington, is a USAT-sanctioned event featuring a swim, mountain bike, and trail run around Lake Padden. Scheduled for August 17, 2025, the race..
The Beaver Lake Triathlon, scheduled for August 24, 2025, is an exciting multi-sport event held at Beaver Lake in Sammamish, WA. Participants will compete in a 1/4 mile swim, a 13.4 mile bike ride, an..
The Plutonium Man Triathlon, held in Richland, Washington at WSU Tri-Cities, offers Olympic and sprint distance races along with relay team options. The Olympic course features a 1.3 km swim in the Co..
The Bonney Lake Triathlon + Duathlon & Aquabike, held in Bonney Lake, Washington, offers both Sprint and Olympic distance races. Set against the scenic backdrop of Lake Tapps and the foothills near Mo..
The Rattlesnake Lake Triathlon, scheduled for August 31, 2025, takes place in the scenic Snoqualmie Valley, North Bend, Washington. This event features a quarter-mile swim in the brisk waters of Rattl..
September 2025
The Lake Stevens Triathlon + Duathlon & Aquabike, held in Lake Stevens, Washington, offers both Sprint and Olympic distance events. The swim starts from a dock at North Cove Park with a deep water sta..
The IRONMAN 70.3 Washington Tri-Cities is a late-season triathlon event held in Richland, Washington, in the heart of the state's renowned wine country. The race features a 1.2-mile downriver swim in..
October 2025
The October Pinnacle Peak Duathlon is a low-frills, chip-timed multisport event held in Enumclaw, Washington, featuring a single course for all participants. Set in scenic farm country with mostly fla..
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