United States
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Alabama8
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Alaska7
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Arizona12
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Arkansas2
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California32
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Colorado7
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Connecticut3
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Delaware3
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District of Columbia
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Florida42
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Georgia12
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Hawaii1
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Idaho9
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Illinois14
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Indiana15
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Iowa6
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Kansas6
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Kentucky3
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Louisiana3
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Maine6
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Maryland10
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Massachusetts13
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Michigan19
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Minnesota16
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Mississippi3
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Missouri8
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Montana3
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Nebraska2
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Nevada
-
New Hampshire1
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New Jersey19
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New Mexico3
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New York40
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North Carolina25
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North Dakota
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Ohio8
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Oklahoma5
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Oregon9
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Pennsylvania16
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Puerto Rico
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Rhode Island
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South Carolina14
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South Dakota
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Tennessee18
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Texas38
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Utah10
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Vermont
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Virginia31
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Washington11
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West Virginia4
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Wisconsin22
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Wyoming2
Triathlon Calendar United States 2025-2026
Explore the best triathlons in the United States for 2025-2026! Our updated list features 542 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
August 2026
XTERRA Portland at Hagg Lake on August 1, 2026 offers rugged trail triathlon and duathlon courses around Bobcat Cove with open water swims, technical mountain biking and scenic trail runs. Chase XTERRA World Tour slots or enjoy sprint and kids races..
Dive into the YFC Seeley Lake Challenge triathlon and duathlon on August 1 at Seeley Lake, Montana. Open water swim, scenic bike and a shaded trail run under old growth larch make this a family friendly race with kids and team options.
Top Gun Triathlon in St. Petersburg Florida on Aug 1 2026 offers sprint triathlon, duathlon, aqua bike and relay options on a closed Fort De Soto course. Enjoy lively pre and post race parties, USAT sanctioning and custom finisher medals.
Join the Big Lake Graniteman Triathlon at Lakeside Park in Big Lake Minnesota, offering sprint and Olympic distances plus two and three person relays. Swim, bike and run around the park with age group waves and on site safety support.
K Town on the River Triathlons in Knoxville offers sprint, Olympic and half iron distances plus duathlon and relays along scenic Tennessee River courses. Expect riverside swims, rolling bike roads and greenway runs for all levels.
Join the long running Brewhouse Triathlon at Duluth's Island Lake for a scenic swim, bike and run through pristine waters and newly paved roads. Enjoy a friendly community atmosphere at this popular annual multi sport race.
Andy’s Race returns to Greenville on Sunday August 2 2026 at the Westside Aquatic Center with Sprint Triathlon, Aquabike, Duathlon and relay options. Enjoy a fast pool swim, rolling 15 mile bike and a two lap 3 mile run in a spirited summer race.
Take on Lums Pond Triathlon in Bear Delaware with Sprint and Olympic distances plus aquabike and relay options. Swim the lake, ride fast bike loops and finish on forested trails at the USAT Delaware State Championships.
Join the Rockwall Kiwanis Tri Rock Triathlon on August 2, 2026 in Rockwall, Texas, with sprint, relay and virtual options. The sprint features a 150 yard pool swim, a 10 mile bike and a 5K run for a lively community race day.
Join the 22nd Steelman Racing Triathlon on August 2, 2026 at Lake Nockamixon for Olympic and Sprint races plus aquabike and relay options. Swim warm lake water, ride rolling closed roads and finish on a shaded lakeside run.
Join the 28th annual Girlfriends Triathlon and Fitness Festival in Vancouver WA for an all women's weekend of triathlon, paddle and 5K options along the Columbia River with stunning mountain views. Celebrate fitness and community at every pace.
Take on the Shawnee Mission Triathlon and Duathlon in Lenexa, KS, with multiple distances and relay options for every level. Scenic Mill Creek park courses host USA Triathlon state championship races and are paratriathlon friendly.
Join the Smith Point Sprint Triathlon in Shirley, NY on Sunday August 2, 2026 for a 500 meter swim, two bike loops over Smith Point Bridge and a 5K finish on the Atlantic shore. Free race photos and finisher medals make it unforgettable.
Take on swim, bike and run across vineyard trails and lakefront at the Autumn Lake Triathlon in Williamstown, NJ. Events include triathlon, relay, aquabike, duathlon, aquathon and a 5K for all levels.
Take on a reverse triathlon at Harris Lake County Park where you run first, bike on scenic roads, and finish with an open water swim in Shearon Harris Reservoir. Family friendly with a kids dash, post race music, snacks and awards.
Take on sprint or Olympic triathlon, duathlon, aquabike or relay at Sylvania's Tam O Shanter Sports Complex and Olander Lake on August 2, 2026. Expect live music on course, lively spectator support, and options for every skill level.
Dive into the Southern Tier Tri Club Summer Series at Cassadaga Lake for a fast super sprint swim, bike and run. All levels are welcome with AquaBike and relay options, plus awards, finisher swag and a relaxed potluck picnic after the race.
Push your limits at the Cowboy Tough Adventure Race, Aug 7 to 9, 2026 at Curt Gowdy State Park near Cheyenne. Choose mountain bike, trek, and paddle legs or trek only, and pick routes for points in 8 Hour or 50 Hour solo and team formats.
Experience the Scenic Challenge at Coeur d'Alene Triathlon 2026 with triathlon, duathlon and sprint distances around Lake Coeur d'Alene. Swim from a cruise ship, bike scenic lakeside roads and finish at City Park along the Centennial Trail.