Mill Creek
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Triathlon Calendar near Mill Creek 2026-2027
Monthly updates for Mill Creek
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Mill Creek for 2026-2027! We've gathered 7 exciting races in the area. Check out our detailed list below to find your next local race.
December 2026
A USAT sanctioned winter triathlon at Lake Sammamish with a 1/4 mile swim in 47°F water, a 10 mile bike and a 5k trail run plus hot coco at the finish line.
February 2027
An indoor time-based triathlon at the UW IMA on February 6, 2027, featuring pool, spin bikes, indoor track, lap tracking, awards, and post-race festivities.
April 2027
USAT duathlon near Soaring Eagle Trail head with a 10 mile hilly road bike and a 5 mile technical trail run, includes long sleeve tech shirt and finisher medal.
June 2027
July 2027
USAT sanctioned triathlon at Wildcat Lake on July 18, 2027 offering individual and relay distances with included long sleeve race T shirt, sticker and cap.
Monthly updates for Mill Creek
Get new running races (and updates) in your inbox every month.
August 2027
Beaver Lake Triathlon combines a 1/4 mile swim, a 13.4 mile bike up Duthie Hill and a 4.3 mile run around Beaver Lake, with multiple race and relay options.
September 2027
Sprint triathlon at Newcastle Beach Park with a 1/4 mile swim, 13k off road bike and 8k run; USAT membership is required.