Triathlon Calendar United States 2026-2027

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Explore the best triathlons in the United States for 2026-2027! Our updated list features 566 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

December 2026
A December triathlon in Key West, Florida organized by Integrity Multisport with race course details, timing, awards, live results and a finish-line music atmosphere.
A long running reverse sprint pool triathlon in Hemet, California with a 150 meter pool finish and a separate 5K on a flat, fast course. Awards follow the races and finishers receive a unique Tinsel medal.
A USA Triathlon-affiliated club in Corpus Christi, TX active on Dec 31, 2026. Members of all ages and abilities train, race, volunteer and form relay teams while promoting multi-sport participation and community giving.
January 2027
A New Year event at Granite Beach featuring a 2 mile run 5 mile bike 2 mile run duathlon and a 5K trail run with lake views. Awards include overall champions and age group prizes.
An adventure race at Antelope Island State Park on 01/02/2027 offering a 15-mile sprint with required mountain bike and navigation plus a 5-mile family course.
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A USARA early season adventure race in Thurmont MD offering 4 hour and 8 hour mountain bike and trek options, youth pricing, a pre race clinic, and post race food and awards.
Draft legal triathlon at Nathan Benderson Park offering Open, Sprint and Olympic distances with a new looped bike course and USAT draft legal rules.
An off-road run, bike, run event at Granite Beach, Folsom Lake SRA on January 23, 2027 featuring scenic running trails and a mostly single track mountain bike course; entries include a TBF beanie and post race food.
An indoor triathlon at the Paris-Bourbon County YMCA on January 30, 2027, offering individual races and 2-3 person relays; children 7 to 13 compete on the indoor track and a parent or guardian must be present.
Tenth Annual Laguna Vista "Du It By The Bay" Duathlon in Port Isabel on January 31, 2027 offers Adult Individual and Relay duathlon entries over 14 miles with set registration dates and fees.
February 2027
A multisport event at Granite Beach with three 2-mile runs and two 5-mile road bike legs, age group and relay awards, and a custom TBF running hat for each athlete.
Pasadena Triathlon at the Rose Bowl on Feb 7, 2027 features reverse and junior triathlons, a 5K, duathlon and relay options, with fundraising for Angel City Sports.
A winter gravel bike rally and trail run in Lyons, Colorado offering multiple run and ride distances, mixed terrain courses, and a public finish-line party with food and music.
A three stage, 320 mile Ultraman in Clermont Florida with a swim, long bike stages and a 52.4 mile run; athletes compete with a support crew.
Experience the Chilly Willy Duathlon at the scenic Fort De Soto in St. Petersburg. Choose between Sprint and International distances featuring various combinations of running and cycling for individuals and relay teams.
Two run legs and a bike leg at Lake Louisa State Park on 02/14/2027, capped at 100 participants and organized by Clermont Triathlon Club and Sommer Sports.
A multi-discipline, unmarked adventure race around Lake Georgetown on February 20, 2027, offered as a 24K 6 hour sprint and a 75K 12 hour extreme team event.
Late February Run, bike, run duathlon at Cherry Creek State Park with two 2.5 mile runs and an 11 mile paved bike course; winter course conditions possible.
Experience an indoor triathlon in Evanston where distance is the goal. Complete a ten minute swim, twenty minute bike, and fifteen minute run to qualify for the U.S. Collegiate Club Triathlon Nationals.
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