United States
- Alabama 13
- Alaska 10
- Arizona 20
- Arkansas 4
- California 62
- Colorado 19
- Connecticut 19
- Delaware 3
- District of Columbia
- Florida 46
- Georgia 15
- Hawaii 3
- Idaho 14
- Illinois 22
- Indiana 25
- Iowa 21
- Kansas 7
- Kentucky 12
- Louisiana 8
- Maine 10
- Maryland 14
- Massachusetts 20
- Michigan 33
- Minnesota 25
- Mississippi 5
- Missouri 8
- Montana 7
- Nebraska 4
- Nevada 2
- New Hampshire 4
- New Jersey 27
- New Mexico 6
- New York 63
- North Carolina 34
- North Dakota 1
- Ohio 22
- Oklahoma 8
- Oregon 8
- Pennsylvania 26
- Puerto Rico 2
- Rhode Island 2
- South Carolina 15
- South Dakota 3
- Tennessee 19
- Texas 54
- Utah 14
- Vermont 3
- Virginia 37
- Washington 21
- West Virginia 6
- Wisconsin 32
- Wyoming 4
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 852 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
A three race Summer Tri Series at Kenneth L. Wilson State Park featuring USAT sanctioned Super Sprint races with a 400 m swim, 12 mile bike, and 2 mile run. AquaBike and relay options are available and paratriathletes are welcome.
A sprint triathlon at Rolling View State Park in Durham, NC with a 400 yard swim, 11 mile bike out and back, and a 2 mile run. It is the second of four summer series races held on Wednesday evenings.
A multi-discipline event at Fox Brook Park in Brookfield, WI featuring a 1000m aquathon with a 5k run, open water swims of 1500m and 500m, and a 5k run or walk using a 500 meter swim loop and lakeside paved path.
Lake Terramuggus Sprint Triathlon in Marlborough CT features lake swims, rolling bike loops and a 5K lakeside run. Multiple distances are offered including a Super Sprint, relay division and an aqua bike option.
A two day triathlon in Rogersville Missouri featuring youth races and multiple adult distances including a new supersprint option. The event dates to 1982 and is presented as the 39th annual ConcreteMan Triathlon.
Short-course mixed team relay triathlon on the Seneca Lake waterfront in Geneva, NY. Four-person mixed teams (2 men, 2 women) complete swim, bike, and run legs sequentially; individual entrants may be randomly paired into teams.
A two-day event in Fairmont, MN featuring a Sprint Triathlon and the Bacon Run 5K at Gomsrud Park on June 20, 2026, plus Marty’s Youth Triathlon at Aquatic Park on June 19, with a Racin’ for the Bacon theme and listed sponsors.
A day of multi-discipline racing at Castaic Lake on June 20, 2026 featuring Olympic, Sprint and youth sprint swim bike and run formats at Castaic Lake Paradise Cove.
Hilton Head BEACH BUM Triathlon & Duathlon takes place June 20, 2026 at Coligny Beach and includes individual triathlon and duathlon races plus a team relay for two or three people. Registration opens June 24, 2025 and closes December 31, 2025.
Ticonderoga Triathlon Festival in Ticonderoga, NY on June 20, 2026 offers Sprint and Olympic triathlons, AquaBike options, double events and relays. Courses feature a 750 m Lake George swim, a hilly bike section and a 5K run along the shore.
Triathlon day in Tremont Illinois on June 20, 2026 with sprint and mini distances, relays, and double-event options. Awards cover age groups and special categories and entry fees vary by event.
A long-running triathlon at Jordanelle State Park with Olympic and sprint race options, scenic bike sections through Francis and Woodland, a boardwalk run through Rock Cliff Recreation Area, and a VIP delivery option for race kit items.
A multi-sport fundraiser on June 20, 2026 at Hopkinton State Park featuring open-water swims, USATF-certified 5K and 10K runs, and a 3-mile walk to benefit the Massachusetts Breast Cancer Coalition.
A multi discipline event at Sunset Lake in Bridgeton offering triathlon, duathlon, aquabike, swim run and a bike only option. Courses run through Bridgeton Park, Cohanzick Zoo and scenic country roads and the race is USAT sanctioned.
On June 20, 2026, Trestle Hustle runs on the High Trestle Trail in Madrid, Iowa, offering 5K, 10K, duathlon and virtual options. Timed in person races include finisher medals and support the Boone County Hospital Foundation.
A multi sport festival at Hagg Lake near Gaston Oregon on June 20 and 21, 2026 offering sprint and Olympic triathlon, duathlon, aquabike, off road races, a trail half and 5K, camping, and virtual race options. Course includes rolling hills.
A long-running triathlon at Lake Tiak-O'Khata and the Neshoba County Fairgrounds featuring a 1/2 mile swim, 27 mile bike and 7 mile run, held June 20, 2026, as an annual fundraiser for The Refuge of MS.
A multi-format event at Clemson University featuring the Sprinternational distance triathlon, aquabike, aquathlon, relay and living donor categories; the race is the USA Triathlon South Carolina State Championship.
A community triathlon in Franklin Lakes on June 20, 2026, offering individual and relay entries with a 1/2 mile swim, roughly 13 mile bike leg, and a 3.1 mile run.
Triathlon races and a new 5 km Run Walk at Montgomery Bell State Park featuring lake swims, varied bike terrain, age group awards and USA Triathlon sanctioning; participants receive event apparel and finish medals for the 5 km.