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Triathlon Calendar near Maple Valley 2026-2027

Monthly updates for Maple Valley

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Explore the top triathlons near Maple Valley for 2026-2027! We've gathered 7 exciting races in the area. Check out our detailed list below to find your next local race.

April 2026
Test your early season fitness at the Pinnacle Peak Duathlon in Enumclaw, WA. This chip timed run bike run on mostly flat farm country roads features a small field and low frills for a focused, fast race day.
May 2026
Cedar River Triathlon at Lake Wilderness offers a super sprint and kids Splash n Dash. It features a quarter mile swim and a scenic 14 mile bike and run on the Cedar River Trail, with a long sleeve tee and forged finisher medallion.
June 2026
Join the 20th anniversary Lake Wilderness Triathlon on June 6, 2026 at Lake Wilderness Park. Choose from Olympic and Sprint triathlons, a half marathon, 10K, 5K, relays and a duathlon while supporting local charities.
Take on the Black Diamond Triathlon on Saturday, June 27, 2026 at Nolte State Park, with Olympic, Sprint, AquaBike and more around Deep Lake and rolling rural roads. All finishers get a medal, tee and hot meal in a friendly community atmosphere.
July 2026
Seafair Triathlon at Seward Park in Seattle features sprint, super sprint, relay, duathlon and kids races with a protected cove swim, bike on closed roadways and a single-loop park run.
August 2026
Dive into Lake Meridian Triathlon at Lake Meridian Park in Kent for Olympic, Sprint and Super Sprint distances plus team relays. Family friendly venue, finishers receive medals and enjoy a lively post race celebration with awards and food.
Race the Beaver Lake Triathlon on Aug 30 in Sammamish, a super sprint with a lake swim, a hilly bike that climbs Duthie Hill, and a flat run through forested streets. Pre race pasta, live music and post race awards add local flair.