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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Florida47
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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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Maryland12
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Massachusetts17
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Michigan27
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Minnesota18
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Mississippi3
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Missouri14
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Montana4
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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 York52
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North Carolina30
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North Dakota
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Ohio13
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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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Utah15
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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 637 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
June 2026
Take on a five day non stop expedition race June 22 to 27, 2026 based in North Adams, MA. Teams of two to four will navigate wild Vermont mountains, forests, waterways and single track in a continuous test of navigation and endurance.
Join the Indiana Sports Corp Corporate Challenge at Indianapolis Motor Speedway on June 26 and 27 for a lively two day team festival. Try running, cycling, pickleball, cornhole, yoga and more, and enjoy team tents, lunch and wellness activities.
Experience Tri Goddess Triathlon on June 27, 2026 at Portage Lake in Waterloo State Recreation Area, featuring sprint and super sprint triathlon, duathlon, aquabike, relays and open water practice swims. Finish strong and celebrate at a lively post r..
XTERRA Tahoe City on June 27, 2026 delivers rugged off road triathlon and multisport action on the shores of Lake Tahoe. Swim in crystal clear water, tackle scenic singletrack bike trails and finish at Commons Beach for awards and atmosphere.
Race the Black Diamond Triathlon on June 27, 2026 at Nolte State Park in Enumclaw. Swim Deep Lake, tackle scenic rolling bike and run routes, choose from multiple distances and celebrate with a finisher tee, medal and hot meal.
Join the Bottomless Triathlon on June 27 at Bottomless Lakes Park in Roswell for a super sprint swim in a spring fed lake, 8 mile bike and 4 km run. Individual, coed relays and youth races welcome and proceeds benefit the local food bank.
Join the Wisconsin Triterium Triathlon in Verona on June 27, 2026 for sprint and Olympic distance races on a multi loop course at Fireman's Park. Expect a finisher medal, event tee, wave colored swim cap, pro timing, free photos and post race food.
Take on a scenic sprint triathlon at Whitefish Lake on June 27, 2026, with swim, bike and run along the lakefront and beach. Enter solo or as a team relay and join athletes aged 13 to 99 for a fun community race.
Join VA Super Tri on June 27 in Midlothian VA for a fast, spectator friendly repeated sprint triathlon. Adults complete five mini tri loops of 125 m swim, 2.4 mi bike and 1 km run while youth do two, benefiting the Live Red Foundation.
Join the 27th Annual Cape Cod Against the Tide at Cliff Pond for a family friendly day of swims, runs, and a fitness walk raising funds for the Massachusetts Breast Cancer Coalition. Race or cheer on the community on beautiful Cape Cod.
Join the Ideal Beach Triathlon in Elkhart on June 27, 2026, featuring sprint and kids courses for beginners and experienced racers. Team relay options and a Heart of a Warrior award make this a welcoming event for all.
Tri Nikiski is an untimed community triathlon in Nikiski Alaska on June 27 2026, welcoming adults, relays and kids. Enjoy a friendly 500 yd swim, 10.6 mile bike and 5K run or a fun kids course that can start with a water slide.
Join the 16th annual Stubborn Mule Adventure Race June 27 to 28, 2026 for navigation, biking and paddling in a choose your own adventure format. Multiple time options start from a secret location near Cable, Wisconsin.
Take on four Adirondack disciplines in one epic day at The Forge Quad Athlon in Old Forge, NY, featuring mountain bike, hike, trail run and Moose River paddle. Enter solo or as a two person team and enjoy a scenic course and post race BBQ.
Dive into the Secret City Sprint Triathlon in Oak Ridge on June 27, a fast, pool based course featuring a 500 meter swim, 15 mile bike and 5K run. Open age groups plus Athena, Clydesdale and relay divisions make it great for all racers.
Join the 20th Broome County Parks Triathlon at Dorchester Park on June 27, 2026 for sprint races including triathlon, relay, aquabike and duathlon. Proceeds benefit accessible playgrounds and race day packet pickup is available.
Experience Captain Thurmond's Challenge 2026 on June 27 in New River Gorge, a scenic 32 mile loop combining mountain biking, whitewater paddling and trail running. Start and finish in downtown Fayetteville for an epic outdoor adventure.
Join the 33rd annual Warsaw Optimist Triathlon on June 27, 2026 at Winona Lake Park for swim, bike and run action, plus duathlon, aquabike, relays, youth divisions and an adaptive My Team Triumph category. All ages and abilities welcome.
Loveland Lake to Lake Triathlon on June 27, 2026 in Loveland CO offers sprint and Olympic distances plus relay, aqua bike and SUP options. USAT sanctioned with age group and specialty divisions, packet pickup and a Friday Q&A for newcomers.
Pleasant Prairie Triathlon offers sprint, Olympic, duathlon and relay races around spring fed Lake Andrea in Prairie Springs Park. As the USAT Wisconsin State Championship it includes Age Group Nationals qualification and race swag.