United States
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Alabama11
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Alaska8
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Arizona11
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Arkansas4
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California46
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Colorado10
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Connecticut4
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Delaware4
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District of Columbia
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Florida55
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Georgia13
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Hawaii1
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Idaho14
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Illinois25
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Indiana27
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Iowa9
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Kansas5
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Kentucky9
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Louisiana4
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Maine7
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Maryland18
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Massachusetts18
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Michigan29
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Minnesota20
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Mississippi4
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Missouri14
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Montana7
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Nebraska5
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Nevada
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New Hampshire1
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New Jersey28
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New Mexico3
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New York64
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North Carolina30
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North Dakota1
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Ohio16
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Oklahoma8
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Oregon12
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Pennsylvania21
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Puerto Rico1
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Rhode Island2
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South Carolina13
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South Dakota
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Tennessee23
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Texas51
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Utah15
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Vermont
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Virginia37
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Washington17
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West Virginia7
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Wisconsin26
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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 757 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
October 2026
IRONMAN 70.3 North Carolina returns to Wilmington on October 17, 2026, featuring a current assisted ocean swim, flat bike and rolling run with a finish across from the Battleship North Carolina. A 2027 Worlds qualifier and Flex90 eligible.
Compete on sun soaked swim bike run courses at the Beach Girl Triathlon in Galveston hosted at the Seaside Holiday Inn. Celebrate at the after party with music and food and take home a finisher shirt, medal and age group awards.
On October 17, 2026 HELP in Motion Trail Run offers 2K, 5K and 10K courses through SnowKraft Nordic's private wooded trails and raises funds and awareness to support survivors of domestic violence.
IRONMAN California comes to Sacramento on Oct 18, 2026 with a flat, fast course and a downriver swim. The race includes a 2.4 mile swim, 112 mile bike and 26.2 mile run finishing at the State Capitol with on site bike rentals.
Take on scenic trails around Lake Hodges in this Run Bike Run duathlon on October 18, 2026, with chip timing and handcrafted wooden finisher medals. Open to ages 10 to 80, it offers rugged singletrack, great views, and a fun community vibe.
Test your speed at the Bill Bone Tropical Triathlon in Lake Worth Florida on October 18 2026, with sprint triathlon, duathlon, aqua bike and relay options. Soak up ocean views, a bridge and downtown bike loop before a scenic Intracoastal finish.
Jump into race day at scenic Lake Evans with triathlon, aquabike, duathlon and 5K and 10K run options plus virtual entries and relays for every level. Expect finisher medals, shirts, food, music and team prizes for a fun community day.
Cal Tri LA returns October 18, 2026 at Dockweiler State Beach for a lively seaside multisport festival with sprint and Olympic options plus SwimBikeRun, RunBikeRun, swims and runs. Youth races are free for ages 7 to 17, so bring the family.
Push your limits at the USARA Adventure Race National Championships in Bend, Oregon, a non stop 30 hour multisport team race. Teams of four vie for national titles and enjoy a festive finish where champions are crowned.
Race a scenic Half Iron distance triathlon on Edisto Island featuring a tide assisted channel swim, a flat 56 mile bike and a two loop 13.1 mile run with frequent aid stations. Enter solo, relay, aquabike or pro fields and enjoy post race fun at Bay..
Join the TALI Sadlers Creek Off Road Duathlon on Oct 24 in Anderson SC for scenic trail runs and lakeside mountain bike loops. Multiple distances and a relay welcome racers and families while supporting New Foundations Home for Children.
Dive into the Southern Utah Triathlon on October 24, 2026 at Quail Creek Reservoir in Hurricane, UT. Choose sprint or Olympic distances, join a relay team or race virtually for a scenic swim bike run along the reservoir.
Join Finish The Ride & Finish The Run at West Creek Park for rides, runs and a lively expo that promotes safer streets for everyone. Routes and virtual options welcome all ages with food trucks and family fun.
Take on the Ultimate Tri at Beachwalk in St Johns, FL on October 25, 2026, for a scenic community triathlon hosted by Ultimate Racing Inc. Sign up online and celebrate finish line moments with easy result sharing.
Run or ride Coldwater Mountain in Anniston, Alabama at Life Time Coldwater Trail on Oct 30 and 31, 2026, across red dirt singletrack, pine needle paths, and technical lines. Distances up to 100K and select races earn Leadville qualification.
November 2026
Join the 15th annual Morro Bay Triathlon on Sunday, November 1, 2026 in scenic Morro Bay, California. Choose Olympic or Sprint distances with individual or team relay entries and kayak or SUP options for a fun coastal challenge.
Join the historic Cal Tri National Championship at Newport Dunes, the longest running triathlon at one venue since 1978. Choose sprint to Olympic distances and enjoy a scenic waterfront course with welcoming race day energy.
Take on a scenic run bike run through Prospect Park in Brooklyn on November 1, 2026, with solo and team entries plus a volunteer for entry credit. Finish with a lively post race barbecue and park views on a fast, rolling course.
Take on the Fall Classic Olympic Triathlon in Long Beach with a 1.5 km swim, 40 km bike and 10 km run along scenic Bayshore. Enjoy chip timing, a finisher medal and post race food in a lively community atmosphere.