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!
February 2026
Push your limits at the Apex Endurance Challenge on Feb 7, 2026 at T. Mabry Carlton Reserve in Venice FL, featuring 50K and 25K trail races plus 4 and 8 hour adventure races with biking, kayaking and navigation. Teams or solo entries welcome.
Take on the YMCA of Middletown Indoor Triathlon on Feb 7 2026 with a snow date on Feb 8. This indoor, wave format tri offers a fast paced, supportive multisport challenge perfect for newcomers and seasoned racers alike.
Race indoors at Medina Rec Indoor Tri on February 8, 2026 with swim, bike, run options for adults and a youth tri for ages 7 to 15. Fast paced waves and limited spots make this a fun off season challenge for all abilities.
Join the Philip Cullen Memorial Indoor Triathlon on Feb 8, 2026 at North Lexington Family YMCA in Lexington KY. Timed swim, bike and run segments let you race solo or with a relay team in a fun, all indoor event with limited spots.
Ultraman Florida is a three day, 320 mile endurance event in Clermont, Florida, Feb 13 to 15, 2026, featuring a Lake Minneola swim and long bike and run stages. Limited to 50 athletes, this solo ultra tests stamina across open water and roads.
The Susitna 100 is a challenging winter race held in Alaska, featuring both a 100-mile and a 50K course. Participants navigate marked trails through stunning, remote landscapes, experiencing the unique conditions of winter racing. The event is organi..
Challenge yourself at the 43rd Mt Taylor Winter Quadrathlon on Feb 14, 2026 in Grants NM, a four discipline mountain race up to the 11,301 ft summit. Steep snowy climbs, sweeping views, aid stations and GPS tracking await.
Join the Stanford Treeathlon in San Mateo on Feb 14, 2026 for a 750 m open water swim, 20 km bike and 5 km run. Choose draft legal collegiate and elite racing or the Classic non draft event with waves for all genders and team relays.
Stanford Draft Legal Triathlon on Feb 14, 2026 in San Mateo offers a sprint course: 750 m swim, 20 km bike and 5 km run. Collegiate, elite and age group athletes welcome; registration opens Dec 2025 and draft legal spots require a code.
Take on trails at Croft State Park on February 14, 2026 for the TALI Off Road Duathlon, featuring adult and youth sprints and a team relay. Enjoy creekside singletrack, punchy climbs and give back by bringing a couple canned goods for the local food..
Join the Chilly Willy Duathlon at Fort De Soto Park on February 15, 2026, offering sprint and long distances, USAT sanctioned and chip timed. All finishers get a short sleeve event shirt and medal, with hot food and beer on site and entries limited t..
Take on the Tri Faster Indoor Triathlon at Wisconsin Athletic Club Greenfield on Feb 15, a timed swim, bike and run on pool, spin bikes and treadmills for ages 12 to 100. Enjoy awards, a race LED headlamp and post race refreshments.
Push your limits at the GVSU "LAST CHANCE" TRI on Feb 15, 2026 at the GVSU Recreation Center in Allendale, MI. This indoor, time based triathlon features timed swim, bike and run segments and can serve as a conference qualifier.
Florida ANVIL at Lake Louisa State Park, Feb 19 to 21, 2026, serves up single, 1.5x and double triathlon distances plus duathlon and aquavelo on short repeat loops. Race a scenic lake swim and multiple bike and run laps for a true endurance test.
Challenge yourself at the Winter Challenge Off Road Triathlon and Duathlon at Dome Farms in Springfield SC on Feb 21, 2026. Run rugged trails, kayak on flatwater, and bike scenic roads with solo or team entries and camping.
Frozen Hare 2 is a multisport swim and triathlon festival at Lawrence Park Swim Club in Broomall, PA on Feb 21, 2026. Enjoy pool swims, runs and races for all levels plus virtual options and a heated outdoor 25 meter pool.
Tackle crisp trails at the Chilly Cheeks Duathlon on Feb 21 2026 at Cherry Creek State Park. This Run Bike Run features short runs and a scenic bike loop on mixed terrain and welcomes fat tire bikes and relays for competition and awards.
Join the Jailbreak Adventure Race around Lake Georgetown for a rugged outlaw style course of paddling, trekking and mountain biking across prairie, forests and single track. Choose 6 hour or 12 hour events and navigate by map and compass.
Take on an indoor triathlon or AquaBike on February 21, 2026 at South Davis Recreation Center in Bountiful, UT, with pool swims, spin bikes and an indoor track for a lively winter race. Limited to 90 spots, top finishers earn comped race entries.
Take on winter trails at the Abominable Snow Tri, a sprint triathlon for runners, fat tire cyclists and cross country skiers at Cannonsburg Ski Area. Multiple race formats plus post race food and beer promise a chilly good time.