United States
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Alabama12
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Alaska11
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Arizona12
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Arkansas3
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California45
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Colorado10
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Connecticut8
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Delaware3
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District of Columbia
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Florida53
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Georgia15
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Hawaii
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Idaho13
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Illinois28
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Indiana26
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Iowa10
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Kansas5
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Kentucky10
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Louisiana5
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Maine7
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Maryland18
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Massachusetts16
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Michigan29
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Minnesota13
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Mississippi5
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Missouri10
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Montana10
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Nebraska5
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Nevada
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New Hampshire2
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New Jersey28
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New Mexico3
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New York67
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North Carolina31
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North Dakota1
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Ohio19
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Oklahoma8
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Oregon12
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Pennsylvania25
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Puerto Rico1
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Rhode Island2
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South Carolina16
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South Dakota
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Tennessee22
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Texas55
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Utah16
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Vermont1
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Virginia34
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Washington22
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West Virginia8
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Wisconsin28
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Wyoming3
Triathlon Calendar United States 2026-2027
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 2026-2027! Our updated list features 786 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
Test your limits at 24+ Hours of Brake the Habit in Marlinton WV, a 24 to 30 hour team adventure mixing trekking, mountain biking, packrafting and navigation. Choose routes and checkpoints for a strategic endurance challenge.
Muleshoe Off Road X TRI & DU in Austin on May 30 offers off road tri and du courses with swim, mountain biking and trail running across scenic terrain. A gritty multisport challenge for adventurous racers.
Push your navigation and endurance at the Tug Hill Extreme Adventure in Boonville NY on May 30 to 31. Pick 24 hour or 8 hour team formats to trek, mountain bike and paddle with map and compass while chasing checkpoints for prizes and glory.
Join TriRidgefield in Ridgefield CT on May 31, 2026 for a sprint swim in Great Pond followed by bike and 5K run on scenic roads and paths. Individual, relay and duathlon entries welcome for ages 13 and up.
Celebrate strength and community at the Women's Whisper Triathlon on Sunday May 31, 2026 at Eisenhower Park in East Meadow, with races for juniors, teens, adults and relays. In person and virtual options are available and a multi sport passport saves..
Join the Ashley Whitney Music City Triathlon on May 31, 2026 in Nashville for a river swim from the General Jackson, a bike on fully closed Ellington Parkway and a finish beside Nissan Stadium. Sprint Olympic relay and virtual options open.
Experience the unique challenge of OTILLO Swimrun on scenic Orcas Island, combining open water swims and trail runs around Eastsound on May 31, 2026. Team and solo entries include World Series distances eligible for ranking points.
Swim, run and climb across scenic Orcas Island in ÖTILLÖ's swimrun at Rosario Resort Beach House. Enjoy a fierce race and a laid back finish with food, drinks and island views for teams or solo racers.
Take on the Medical Lake Triathlon at scenic Medical Lake Park with Super Sprint, Sprint, and youth Splash n Dash for ages 7 to 15. USAT sanctioned with one day memberships available, water safety, music, a forged finishers medal and custom T shirt.
Join the PDX Triathlon Festival at Blue Lake Regional Park in Fairview OR on May 31, 2026 for flat fast swim, bike and run courses and distances for all abilities. Enjoy an expo, post race food, music and kids events while supporting local charities.
A multisport festival at Caesar Creek State Park Beach featuring triathlons, duathlons, aquabikes, open swims and open runs across beginner to 1/3 Iron distances, plus event tees, finisher medals and a catered post-race meal.
Race the Spring Sprint at Uvas Reservoir on May 31, 2026: a scenic 0.75 mile swim, 16.2 mile bike and 5 mile run with AquaBike, duathlon, open water swim and a kids run. Fully supported with chip timing, awards, race shirt and brunch.
Join the 12th Annual LandShark Swim at Lake Gardner in Amesbury on May 31 for swims from a half mile to 2.4 miles or a swim and run. Calm open water, safety support, a swim cap and post race treats make it a fun day.
On May 31, 2026 this event in Knoxville combines SwimRun team and individual races with trail-only 5k and half marathon options, using course routes through Mead's Quarry and Ijams Nature Center in the Urban Wilderness.
June 2026
Join a summer series of three fast super sprint triathlons in lakeside Cassadaga NY with short swim bike and run plus AquaBike and relay options. Race one night or the full series as points add up toward season standings and awards.
Endurance Fest in Corpus Christi from June 5 to 7 features running, walking and bike events along the scenic Water's Edge Park waterfront. Choose distances from a kids 1K glow run to a 41 mile bike tour, earn medals and swag for early registration.
Join the Team Rocket Heel & Crank Duathlon in Huntsville, Alabama this early June 2026 for a fun run, bike, run challenge set in Research Park at ADTRAN. Individual and relay teams welcome, with registration opening January 13, 2026.
The Best in the West Triathlon Festival on June 6 and 7, 2026 at Lewis Creek Park features lake swims, rolling bike routes and wooded shoreline runs around Foster Reservoir. Camp on site then celebrate with a barbecue, live music and awards.
Join the 39th Milkman Triathlon on June 6, 2026 in Dexter New Mexico, a scenic sprint at Lake Van with a 0.5 km swim, 20 km bike and 5 km run. Soloists and mixed teams welcome with chocolate milk and ice cream at the finish.