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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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 632 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
May 2026
Join the Bear Triathlon on May 16 and 17, 2026 at Lums Pond State Park in Bear, Delaware. Sprint and Olympic distances, relays and youth races make for a fun USA Triathlon sanctioned weekend of swim, bike and run.
Take on a race weekend at scenic French Creek State Park with Saturday triathlons and Sunday SwimFest plus youth splash and dash events. Sprint and Olympic distances, aquabike, relays, age group awards, and a hot post race buffet.
Dive into the Northwoods at the White Deer Triathlon, a paddle bike run challenge on scenic Boulder Lake and forest roads. Race solo or on a relay team, then celebrate with food, medals and an after party in Boulder Junction.
The BoFish Triathlon, held annually in Trumbull, Connecticut, is a well-established event now in its seventh year. This triathlon offers participants a competitive and scenic course, attracting athletes of various skill levels. While specific distanc..
Join the Mack Cycle Tri Miami Trilogy on Key Biscayne with three race days. Choose Sprint, International or Olympic distances and enjoy a calm Atlantic swim, a skyline bridge climb and park runs with ocean views.
Shi Tri is a scenic run, paddle and bike triathlon along the Shiawassee River in downtown Owosso. Race solo or join a 2 to 3 person relay and help support the Friends of the Shiawassee River and community fitness.
Dive into Cal Tri Richmond at Lake Anna State Park on May 17 2026, offering 18 race options from youth sprints to full Olympic distances. Swim bike and run scenic courses with family friendly youth races and flexible registration.
Take on the C26 Kansas City Triathlon on May 17 2026 with Olympic, sprint, duathlon and relay options. Flat closed road courses and strong race day support make this an ideal early season test for all levels.
Experience IRONMAN 70.3 Chattanooga on May 17, 2026 with a Tennessee River swim, scenic rolling bike through hills, and a riverfront run. World Championship qualifying slots and a beautiful course make this a must for serious triathletes.
Take on the Shawnee Mission Park Adventure Race on May 17, with 2 hour and 6 hour options mixing trail running, mountain biking, paddling and navigation through prairie and streamway terrain. Teams and solos welcome, rain or shine.
The Nashville Women's Triathlon on May 17, 2026 invites women to a fun multisport challenge with a pool swim, scenic bike route and a run through Centennial Park past the Parthenon. Choose sprint or super sprint distances, enter solo, team up in two..
Lake Lou Yaeger Triathlon in Litchfield IL on May 17, 2026 offers sprint and Olympic distances plus aquabike, relay and a high school sprint, with an open water swim clinic May 16. Enjoy a beach start, flat country roads and a lakeside run for a scen..
Take on Playtri Fort Worth on May 17, 2026 with Olympic and Sprint triathlons, Run Bike Run duathlon, relay teams and virtual options at Marine Creek. USAT sanctioned, family friendly and great for racers ages 13 and up.
Join the Dunedin Rotary Triathlon at Honeymoon Island State Park on May 17, 2026 for triathlon, duathlon or aquabike distances. Enjoy a scenic swim, bike and run while supporting the Rotary Club of Dunedin.
Celebrate fitness at the Independence Triathlon at scenic Lake Nockamixon with Olympic and Sprint options plus relay and aquabike for ages 12 and up. Closed roads, a lake swim, finisher gear and a post race meal make for a great race day.
Kick off your season at the New England Season Opener in scenic Hopkinton State Park, with sprint triathlon and duathlon races plus team options. Enjoy a custom finisher medal, BBQ, soft shirt and live results for a fun early season challenge.
Celebrate 14 years of the Upper Dublin Triathlon in Fort Washington, PA on May 17, 2026, with triathlon, duathlon, aquabike, relay or run only options for ages 10 to 99. All finishers earn medals and proceeds benefit local charities.
Race the USAT State Championship at Prairie Creek Reservoir Park on May 17, 2026 with Sprint and Olympic triathlons plus duathlon, aquabike and relays for all levels. Beach starts, scenic bike rollers and a custom finisher medal await.
Join the Game On! Escape to Hutchinson Island Triathlon in Stuart, Florida for ocean swims, scenic A1A bike rides and waterfront runs with sprint, international and relay options. Proceeds benefit the Florida Oceanographic Coastal Center.
Push your limits at the Lakeside Double Sprint Triathlon in Greenville, SC on May 22, 2026, where athletes swim, bike and run the sequence twice for a fast and fun challenge. Enjoy pool swims, scenic rural roads and spectator friendly one mile run lo..