United States
- Alabama 10
- Alaska 4
- Arizona 15
- Arkansas 2
- California 62
- Colorado 16
- Connecticut 4
- Delaware 2
- District of Columbia 1
- Florida 40
- Georgia 8
- Hawaii 4
- Idaho 8
- Illinois 19
- Indiana 12
- Iowa 11
- Kansas 2
- Kentucky 6
- Louisiana 5
- Maine 3
- Maryland 14
- Massachusetts 13
- Michigan 19
- Minnesota 9
- Mississippi 5
- Missouri 8
- Montana 4
- Nebraska 4
- Nevada 3
- New Hampshire 3
- New Jersey 10
- New Mexico 4
- New York 55
- North Carolina 24
- North Dakota
- Ohio 13
- Oklahoma 6
- Oregon 5
- Pennsylvania 17
- Puerto Rico 1
- Rhode Island 2
- South Carolina 8
- South Dakota 1
- Tennessee 12
- Texas 49
- Utah 14
- Vermont 2
- Virginia 30
- Washington 10
- West Virginia 2
- Wisconsin 26
- Wyoming 1
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 605 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
September 2026
Coles Crocs Splash and Dash in Cypress Texas on September 27 2026 pairs pool swims with runs across age divisions, includes virtual options and a new two person relay. Participants receive a shirt and a finishers medal and top finishers earn awards.
A single-distance kayak, bike, run in Shelby Park and Bottoms on September 27, 2026; a noncompetitive community event with costumes encouraged and proceeds to local groups.
Experience a scenic triathlon in Santa Cruz featuring Olympic and Sprint distances with a coastal course that supports local youth and collegiate athletic programs.
A multi-format race day at Boyd Lake State Park with triathlon, SUP, duathlon, aquabike, and aquathlon options, onsite camping and spectator-friendly looped courses.
Experience a triathlon featuring a 1.2 mile swim in the Columbia River, a hilly 56 mile bike ride, and a flat 13.1 mile run finishing in Vantage.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
Women only triathlon and duathlon at Lago Mar Lagoon in Texas City featuring sprint distances, relay teams, beach finishes, and LagoonFest admission.
Sprint triathlon on September 27, 2026 featuring a 500 yards swim, a 12.5 miles bike leg and a 3 miles run with chip timing and a finisher medal.
October 2026
Multi day event in Harpers Ferry, Iowa combining trail running, fly fishing and craft beer while directing funds to local fish habitat restoration.
A three day weekend at McNear’s Beach Park combining an Olympic distance triathlon, a trail half marathon, a kids fun event, and a combined challenge.
A multi discipline race at Lake Pleasant with Olympic and sprint triathlon, duathlon, kayak SUP, and aquabike distances. The event is chip timed, offers finisher medals and hoodies, and is sanctioned by USA Triathlon.
A map and compass adventure race in Elkader, Iowa on October 3, 2026 combining trekking, biking and paddling for teams or solo competitors.
A triathlon festival on October 3, 2026 at Sandling Beach State Recreation Area serving as the final round of the 2026 North Carolina Triathlon Series.
A multi-sport event in Eaton Rapids combining a 2 km kayak, 15 mile bike, and 5 km run that ends with a colored powder finish. Options include individual triathlon, three-person relays, and a 5K-only entry.
Multi-sport races at Mitchell Park, Guthrie Lake on 10/03/2026 featuring triathlon, duathlon, aquabike and a free Youth Under 12 race in a spectator-friendly lakeside setting.
A two day triathlon festival in Rock Hall, Maryland featuring half, Olympic and sprint distances with triathlon, aquabike and relay options. Swim in Rock Hall Harbor and ride and run on largely flat to rolling rural roads.
A multi-format event at Lake Murray Dam featuring a 1000 meter lake swim, a 21 mile bike course that crosses the dam, and a 6 kilometer run along the dam. Registration opens November 1 2025 and deadlines vary by race.
A point to point triathlon in eastern Valley County Idaho from Warm Lake to Yellow Pine via a 7300 foot summit. Multiple divisions include able bodied, adaptive, and relay formats with awards and an after party in Yellow Pine.
A full day of multisport racing at Lake Brandt Marina in Greensboro, NC on October 3, 2026, with morning on road triathlon and duathlon followed by an off road triathlon and a Double Trouble award for completing both races.
A two day triathlon festival at the Hammerman Area of Gunpowder State Park in Chase, MD. It features women's and men's sprint triathlons, aquabike and duathlon options, team relays and a youth race for ages 6 to 15.
A point-to-point swim-run through the Cape Cod National Seashore on October 3, 2026, offering three distances. Competitors may race solo or as two-person teams; the event is part of the My SwimRun Championship Series.