United States
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Alabama14
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Alaska12
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Arizona15
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Arkansas6
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California71
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Colorado15
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Connecticut15
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Delaware5
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District of Columbia
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Florida55
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Georgia19
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Hawaii3
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Idaho16
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Illinois29
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Indiana32
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Iowa18
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Kansas6
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Kentucky11
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Louisiana9
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Maine9
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Maryland21
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Massachusetts24
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Michigan36
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Minnesota24
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Mississippi10
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Missouri14
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Montana9
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Nebraska5
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Nevada1
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New Hampshire2
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New Jersey31
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New Mexico8
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New York75
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North Carolina35
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North Dakota1
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Ohio23
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Oklahoma8
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Oregon13
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Pennsylvania34
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Puerto Rico1
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Rhode Island3
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South Carolina20
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South Dakota1
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Tennessee28
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Texas61
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Utah16
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Vermont3
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Virginia41
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Washington31
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West Virginia8
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Wisconsin36
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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 979 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
June 2026
Experience the opening US Mudskipper event at Deam Lake Indiana. Choose from swimrun distances of 5.4 km and 10.8 km or participate in a 5 km trail run through scenic natural surroundings.
Experience a central Minnesota favorite featuring a swim in Buffalo Lake and a bike course through downtown and scenic country roads. Choose between individual or relay entries for both sprint and Olympic distances.
The Harvest Triathlon
The event takes place in Wareham, Massachusetts on Sunday, June 7, 2026. It features multiple race formats including Individual Sprint, Sprint Relay Team, Individual Olympic, Olympic Relay Team, Individual Aquabike Olympic, and..
Bare Hill Sprint Triathlon, Duathlon and Aquabike in Harvard MA offers sprint-distance triathlon, a relay option, duathlon and aquabike formats. The triathlon is USAT sanctioned and counts for Massachusetts State Championship ranking points.
A multi-event triathlon at Keuka College on June 7, 2026 featuring intermediate and sprint triathlon and aquabike races, a sprint duathlon, relay team options, on-campus dorm housing, and an indoor buffet lunch after the races.
Stampede Duathlon on June 7, 2026 at ZooMontana in Billings features multiple run, bike, run distances including sprint and standard options. A portion of proceeds supports ZooMontana's on site veterinary clinic and animal health center campaign.
The 9th annual Fox Lake Sprint Triathlon offers a scenic sprint course in Illinois. Swim past inflatable duck buoys, bike rolling hills, and finish on a paved path. It's also the first event in an optional three-race series with combined awards.
Join a unique multi sport event in Gibraltar featuring a scenic paddle around the island followed by a 5k run to support HHT research. Choose between kayaking, stand up paddle boarding, or traditional running events on the Lake Erie waterfront.
The Sylvan Beach Tri/Du is a multisport event held at Sylvan Beach Park. It features Olympic and Sprint triathlons, a duathlon, and relay options. It's part of the 2026 Bayou City Tri Series.
Experience the inaugural IRONMAN 70.3 Omaha featuring an exclusive swim in Lake Cunningham and a run across state lines. Race through Nebraska farmland and urban trails in a city renowned for hosting major sporting events.
Experience a classic California multisport event at Rancho Seco Park featuring a lake swim, road bike, and trail run. Join the 43rd season of this historic series with triathlon, duathlon, and relay options for all participants.
Practice your multisport skills at the Stroke and Stride Series in Shoreview. These Tuesday evening sessions feature chip timed open water swims and 5K runs at Turtle Lake throughout the summer.
Experience a unique multi sport event featuring a sand dune run, a scenic 17 mile bike ride, and a paddle across Little Glen Lake in the Sleeping Bear Dunes National Lakeshore.
Experience a high altitude triathlon in the shadow of the iconic Flatirons. This event features a reservoir swim, a hilly bike course, and a scenic run through Boulders trails and roads.
Experience a scenic multisport event in Winona featuring triathlons, duathlons, and aquabikes. Swim in Lake Winona and cycle through the countryside before finishing with a flat run along the water.
Experience an outdoor scavenger hunt at Lake Anna State Park featuring paddling, biking, and hiking. This USARA sanctioned 5 hour adventure race offers both solo and team categories for a unique orienteering challenge.
A longstanding USAT sanctioned race in Montauk offering Olympic, Aquabike and Sprint distances with open water swims in Lake Montauk and hilly bike and run courses, raising funds for pancreatic cancer research.
A multi-format triathlon and duathlon event in Knoxville offering sprint and Olympic distances, aquabike and relays, with a Tennessee River swim, Riverside Drive bike route and a greenway run past river landmarks.
The Heart and Sole Triathlon returns for 2026. This sprint triathlon features a 400-yard pool swim, a 15-mile bike tour through Woodford County, and a 3.1-mile cross-country run. A Family Relay Division is also available.