Triathlon Calendar near Maple Valley 2025-2026

Join the Trio Trail Run at Frontier Park on December 14 for a relaxed community trail outing with 2.5K and 5K two loop options. Laid back vibe, youth discount for pre registration, and day of registration is available.

Kick off your season with the April Pinnacle Peak Duathlon in farm country near Enumclaw. This no frills, short course race on mostly flat roads offers chip timing and a capped field for a relaxed, competitive early season tune up.

Race the Cedar River Triathlon at Lake Wilderness in Maple Valley, WA on May 10, 2026 in a scenic super sprint swim bike run with wetsuits welcome. Finishers earn a Cedar River medallion and a kids Splash n Dash brings family fun.

Join the Black Diamond Triathlon at Nolte State Park in Enumclaw with Olympic, Sprint and AquaBike options. Swim Deep Lake, ride rolling country roads, earn a medal and enjoy a hot post race meal. Registration opens Nov 22, 2025.

Join the Lake Meridian Triathlon in Kent, WA on August 22, 2026 with sprint, Olympic and super sprint races plus relay options. Spectator friendly venue, finisher medals and a finish line celebration make it great for athletes and families.