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
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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!
July 2026
IRONMAN 70.3 Boise debuts July 25, 2026 and offers World Championship qualifying slots amid scenic Boise river views and Lucky Peak Reservoir. Expect a challenging bike through the foothills and a flat run along the Boise Greenbelt.
Join the Lake Country Triathlon in downtown Oconomowoc for sprint to Half Iron distances, with a scenic Lac La Belle swim, rolling bike through moraine country, and a lakeside run. All finishers receive a custom medal and race shirt.
Now in its 39th year, the Mountain Lakes Triathlon in Guntersville features a scenic swim in Lake Guntersville, a fast bike loop and a lakeside greenway run. Sprint and Olympic distances plus relay and virtual options pair with friendly community vib..
Challenge yourself at the Lake Springfield Triathlon on July 25, 2026 in Springfield Illinois. Swim the lake, cruise a flat bike course and enjoy a shady flat run with sprint, Olympic and half distance options for all levels.
Celebrate local heroes at the First Responders Bring in the Backup Triathlon in Northwood, IA. Sprint, relay, aquabike and duathlon options welcome all as first responders lead the field and proceeds support local programs.
Join a lakeside multisport day at Laurel Lake Club House on July 25, 2026 with triathlon, duathlon, aquabike, aquathlon, relays and a Super Sprint. Freshwater swim, scenic bike and run routes; field capped at 300, register online.
Join the Culpeper Triathlon on July 25, 2026 for swim, bike and run at Mountain Run Lake with Blue Ridge views. Multiple distances and relays plus race swag, timed results and a post race meal make it a welcoming day for racers of all levels.
Take part in the Matt Mason "Cowboy UP" Triathlon and Duathlon at Smithville Lake in July 2026, featuring swim bike run courses, relays and a virtual entry. Flat lake and bike loops make it great for first timers and seasoned racers.
IRONMAN 70.3 Maine in Augusta features a fast downriver swim on the Kennebec, a rolling hilly bike and a scenic half marathon. Finish at the State Capitol with lively local support and World Championship slots.
Challenge yourself at the Triing for a Cure Triathlon in scenic Ottawa Lake State Park in Dousman on July 26, 2026. Now in its 18th year and part of the Wisconsin Triathlon Series, the event offers sprint and Olympic courses plus finisher perks.
Celebrate women athletes at the Gillie Girl Sprint Triathlon in Camillus, NY. Swim two lake loops then tackle a flat 15 mile bike and a 5K run with individual, relay and Aquabike options on a spectator friendly course.
Enjoy a scenic lakeside triathlon in Findley Lake with Sprint, Olympic, AquaBike and relay options. Try the Double Findley to complete both races in one day or join as a paratriathlete in a welcoming community.
Smiley Sprint Triathlon in Clemmons NC delivers a fast, friendly sprint triathlon for beginners and vets. Run by experienced Ironman athletes, the non profit event supports local charities and offers clinics, live music and medals.
Dive into the Crescent City Triathlon on Sunday, July 26, 2026 in Crescent City, CA with a 500 yard pool swim, 12 mile ocean side bike and a 5K beach and harbor run. Families and teams welcome with kid races, duathlon and relays.
Join the Detroit Triathlon on July 26, 2026 at Atwater for Olympic, Sprint, or Super Sprint distances and relay options. Swim, bike, and run scenic Detroit routes for a memorable challenge solo or with teammates.
Race the Goleta Beach Triathlon on Sunday, July 26, 2026 at scenic Goleta Beach Park with sprint, parent and child, and aquabike options for all levels. Enjoy a calm ocean cove swim, coastal bike paths toward Santa Barbara, and a spectator friendly t..
Join the Brick Endurance Summer Triathlon Series at Rolling View State Park for a Wednesday evening sprint race featuring a 400 yard swim, an 11 mile bike and a 2 mile run. Fast course, friendly summer vibes, great for all levels.
Join the C26 Wisconsin Triathlon Camp July 30 to August 2, 2026 in Madison for coached open water swims, guided rides and course runs on the Ironman and 70.3 Wisconsin routes. All levels welcome for focused training and race day confidence.
Experience the Columbia River Triathlon weekend in Vancouver WA with riverside races and big mountain views. Choose kids, sprint and Olympic triathlons plus relays, duathlons, aquaBike, paddle and virtual options for all levels.
August 2026
TriathaMOM is a women only, fully supported non competitive triathlon in Riverton, UT featuring a short swim, bike and run with on course guidance and chip timing. Enjoy an empowering, friendly race day built on camaraderie.