United States
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Alabama8
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Alaska7
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Arizona12
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Arkansas2
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California32
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Colorado7
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Connecticut3
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Delaware3
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District of Columbia
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Florida42
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Georgia12
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Hawaii1
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Idaho9
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Illinois14
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Indiana15
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Iowa6
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Kansas6
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Kentucky3
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Louisiana3
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Maine6
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Maryland10
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Massachusetts13
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Michigan19
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Minnesota16
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Mississippi3
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Missouri8
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Montana3
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Nebraska2
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Nevada
-
New Hampshire1
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New Jersey19
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New Mexico3
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New York40
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North Carolina25
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North Dakota
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Ohio8
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Oklahoma5
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Oregon9
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Pennsylvania16
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Puerto Rico
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Rhode Island
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South Carolina14
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South Dakota
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Tennessee18
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Texas38
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Utah10
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Vermont
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Virginia31
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Washington11
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West Virginia4
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Wisconsin22
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Wyoming2
Triathlon Calendar United States 2025-2026
Explore the best triathlons in the United States for 2025-2026! Our updated list features 542 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
December 2025
CLASH Endurance Daytona brings triathlons, relays, a holiday lights Jingle Jog 5K and kids races to Daytona Speedway, December 5 to 7, 2025. Race, cheer or swim a mile for charity in Lake Lloyd for an unforgettable Speedway weekend.
IRONMAN 70.3 La Quinta is a scenic half distance triathlon near Palm Springs featuring a cool lake swim, a flat fast bike with a lap of Thermal Raceway, and a palm lined run with mountain views. Sold out and awards World Championship slots.
Enjoy ocean swims, scenic bike miles on A1A and a finish on the Fort Pierce jetty at Game On! Treasure Coast Tri. Sprint and international distances plus relays, duathlon and aquabike welcome.
Join the Bonner Springs YMCA Tri at the Y on December 7, 2025 for a fast, indoor swim, spin bike and treadmill triathlon suitable for adults and youth ages 7 to 14. Every finisher earns a medal and heats keep each leg short and punchy.
Be part of history at the inaugural White Continent Triathlon in Antarctica, December 6 to 13, 2025. With just 15 spots, this swim up to 400 m, 20 km bike and 5 km run offer an epic once in a lifetime polar challenge.
Join Frozen Hare Swim and TriFest in Broomall on December 13, 2025 for races in a heated outdoor 25 meter pool and multisport courses for all abilities. Swim, run or tri and score a race shirt plus custom awards for top finishers.
Join the Holiday Classic in Anthem AZ on December 13 for a USA Triathlon sanctioned event with triathlon, duathlon, aquabike and youth races. Heated pool swim, looped bike with protected lanes, plus a finisher hoodie and medal.
Dive into turquoise waters and run palm lined sands at the Key West Triathlon at Higgs Beach on December 14, 2025. Choose from mini to international distances or try a duathlon or aquabike, then celebrate at a lively finish area with music.
IRONMAN 70.3 Florida returns to Lake Eva Park in Haines City on December 14, 2025 as the season finale, featuring a lake swim and rolling bike and run courses. The race is sold out and offers spots for 70.3 World Championship qualification.
Take on the festive 39th Tinsel Triathlon in Hemet, a reverse sprint pool triathlon finishing in a 25 meter heated pool, or choose the 5K run only. Enjoy country roads, a post race awards ceremony and a finisher medal.
Join the Trio Trail Run at Frontier Park on December 14 for a relaxed community trail outing with 2.5K and 5K two loop options. Laid back vibe, youth discount for pre registration, and day of registration is available.
Raid the Rock is a rugged adventure race near Little Rock offering 8 hour and 24 hour timed courses that test your map and compass navigation. Expect trekking, mountain biking, paddling and a possible ropes section for teams or solo racers.
Join the inaugural Dirty Santa Beer Mile at 5x5 Brewery on December 20 for five laps around the brewery with a beer before each lap. Open to ages 21 to 99, finishers get a medal, shirts for early registrants and awards for top finishers.
Join the Corpus Christi Triathlon Club on Dec 31, 2025 in Corpus Christi, TX for a welcoming end of year gathering. All abilities welcome to enjoy training, racing and community spirit with relay and solo options.
January 2026
Start the year at the New Year's Duathlon and 5K at Granite Beach, Folsom Lake, with scenic lake trails and a 2 mile run 5 mile bike 2 mile run or a gentle 5K. Enjoy aid stations, post race soup and cookies and support a local charity.
Join the Winter Warm Up Adventure Race, a 5 Hour January 2026 event at Gambrill State Park with mountain biking and a trek only option. Compete solo or with a team of two, three or four for a spirited outdoor challenge.
Beginner friendly off road duathlon at Laurel Hill County Park in Mount Pleasant, SC on January 10, 2026. Enjoy scenic trails with a 2 mile run, 7 mile bike and 2 mile run.
Support Cape Fear Youth Triathlon Team at the Cape Fear Indoor Triathlon on Jan 11 2026, a fun one hour indoor swim bike run challenge. In person waves and a virtual option let you compete your way with 100% of proceeds donated.
Take on snow, sweat and scenery at the Tri Flake Winter Triathlon in Kincaid Park, Anchorage. Race solo or as a team through a 6K run, about 13K of snow biking and a 6K skate ski before a stadium finish and winter celebration.
Take on the Chill Winter Adventure Race in Cumberland Jan 24 2026 for a rugged day of winter trekking, biking and navigation around Bear Creek Lake. Solo racers or teams of 2 to 4 welcome as strategy and route choice shape the challenge.