United States
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Alabama9
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Alaska7
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Arizona10
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Arkansas2
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California38
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Colorado8
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Connecticut3
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Delaware3
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District of Columbia
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Florida46
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Georgia13
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Hawaii1
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Idaho9
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Illinois15
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Indiana21
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Iowa8
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Kansas5
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Kentucky9
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Louisiana3
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Maine7
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Maryland11
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Massachusetts17
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Michigan27
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Minnesota16
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Mississippi3
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Missouri14
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Montana3
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Nebraska3
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Nevada
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New Hampshire
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New Jersey23
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New Mexico3
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New York51
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North Carolina30
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North Dakota
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Ohio12
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Oklahoma6
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Oregon9
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Pennsylvania16
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Puerto Rico
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Rhode Island1
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South Carolina14
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South Dakota
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Tennessee22
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Texas44
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Utah12
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Vermont
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Virginia33
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Washington13
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West Virginia5
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Wisconsin24
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Wyoming2
Triathlon Calendar United States 2025-2026
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in the United States for 2025-2026! Our updated list features 628 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
October 2026
Compete on sun soaked swim bike run courses at the Beach Girl Triathlon in Galveston hosted at the Seaside Holiday Inn. Celebrate at the after party with music and food and take home a finisher shirt, medal and age group awards.
IRONMAN California comes to Sacramento on Oct 18, 2026 with a flat, fast course and a downriver swim. The race includes a 2.4 mile swim, 112 mile bike and 26.2 mile run finishing at the State Capitol with on site bike rentals.
Take on scenic trails around Lake Hodges in this Run Bike Run duathlon on October 18, 2026, with chip timing and handcrafted wooden finisher medals. Open to ages 10 to 80, it offers rugged singletrack, great views, and a fun community vibe.
Test your speed at the Bill Bone Tropical Triathlon in Lake Worth Florida on October 18 2026, with sprint triathlon, duathlon, aqua bike and relay options. Soak up ocean views, a bridge and downtown bike loop before a scenic Intracoastal finish.
Jump into race day at scenic Lake Evans with triathlon, aquabike, duathlon and 5K and 10K run options plus virtual entries and relays for every level. Expect finisher medals, shirts, food, music and team prizes for a fun community day.
Dive into Cal Tri LA on October 18, 2026 at Dockweiler State Beach in Playa del Rey. Choose from 18 race options across Olympic, Sprint, and Youth formats for a sunny multisport day by the ocean.
Take on a scenic half iron triathlon on Edisto Island at Bay Creek Park on October 24, 2026, featuring an ocean swim, fast two loop bike and a coastal run. Options include relay and aquabike plus pro fields, with post race festivities at the park.
Join the TALI Sadlers Creek Off Road Duathlon on Oct 24 in Anderson SC for scenic trail runs and lakeside mountain bike loops. Multiple distances and a relay welcome racers and families while supporting New Foundations Home for Children.
Enjoy a swim, bike and run at scenic Quail Creek Reservoir near St George, UT on Oct 24, 2026 for the Southern Utah Triathlon. Race options include Sprint, Olympic, relays and a virtual tri to suit every level.
Join Finish The Ride & Finish The Run at West Creek Park for rides, runs and a lively expo that promotes safer streets for everyone. Routes and virtual options welcome all ages with food trucks and family fun.
November 2026
Celebrate the 15th annual Morro Bay Triathlon on Sunday November 1 2026 for coastal racing in Morro Bay California. Choose Olympic or Sprint distances with kayak and stand up paddle options and individual or team relays.
Join the 2026 Optimism Cal Tri in Newport Beach on November 1, the longest running triathlon at one location and a Cal Tri National Championship. Sprint and Olympic swim bike run formats welcome all abilities with scenic waterfront views.
Take on the Fall Classic Olympic Triathlon in Long Beach with a 1.5 km swim, 40 km bike and 10 km run along scenic Bayshore. Enjoy chip timing, a finisher medal and post race food in a lively community atmosphere.
IRONMAN Florida in Panama City is a full 140.6 triathlon with an ocean swim and flat scenic bike and run courses. A World Championship qualifier and North America's longest running IRONMAN, this award winning race has onsite bike service.
Experience wilderness challenge at the Rocktown Adventure Race in Massanutten, VA. Choose a 5 hour or long 30 hour course combining mountain biking, trekking and ropes with a paddle for the 30 hour event, finishing with food and awards.
Race the 23rd Oilman Texas Triathlon weekend at Margaritaville Lake Resort on Lake Conroe with half distance, sprint, aquabike, relays, youth races and a fun tri. Enjoy a lake swim and scenic Montgomery County bike and run courses.
Join OTILLO Swimrun Austin in Spicewood Texas on Nov 8, 2026, with World Series, sprint and experience races at scenic Camp Texlake. Push yourself solo or team across alternating swim and run segments in a vibrant community event.
Join IC Tri for the Y, a fun indoor sprint triathlon in Ithaca that mixes pool, spin bike and treadmill for timed distances. All ages welcome and proceeds support the YMCA Annual Campaign to fund local programs.
Join ÖTILLÖ Race: Austin USA on Nov 8, 2026 at Pace Bend Park to swim and run around Lake Travis' cliffs, single track trails and rocky coves. Pick Experience, Sprint or World Series for a scenic, adventurous race day.