Triathlon Calendar United States 2026-2027

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Explore the best triathlons in the United States for 2026-2027! Our updated list features 608 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

September 2027
Experience a USAT sanctioned triathlon at 370 Lakeside Park featuring a beach start, scenic rural bike course, and flat trail run with distances from 5K to Half Triathlon.
Eight stage triathlon near New Paltz with a 30 mile bike, three open water swims and four trail runs, limited to fewer than 200 athletes.
A one day multisport relay in Durango, Colorado combining seven back to back disciplines into team or solo formats, listed provisionally for September 18, 2027.
Ocean swim and beachfront bike in Long Beach California on September 19, 2027 with SuperSprint, Sprint, and Olympic distances and fundraising for Children’s Hospital Los Angeles.
Multi-format triathlon event in Austin on September 19, 2027 offering Sprint, Olympic and youth race options at Walter E. Long Metropolitan Park.
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October 2027
USAT duathlon at Soaring Eagle Trailhead in Sammamish featuring a hilly 10 mile road bike followed by a 5 mile technical trail run with shirts and finisher medals.
Experience 12 event options including triathlons, runs, and swims at Lake Havasu State Park, featuring an out and back run along the scenic Shoreline Trail.
August 2029
A multi-format triathlon in St. Cloud on 08/01/2029 offering sprint, Olympic, and relay options with online and in-person registration and tiered fees; organizers note possible cancellation and deferral options.
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