United States
- Alabama 14
- Alaska 10
- Arizona 19
- Arkansas 4
- California 61
- Colorado 19
- Connecticut 17
- Delaware 3
- District of Columbia
- Florida 44
- Georgia 14
- Hawaii 3
- Idaho 15
- Illinois 21
- Indiana 23
- Iowa 21
- Kansas 7
- Kentucky 12
- Louisiana 8
- Maine 10
- Maryland 14
- Massachusetts 19
- Michigan 31
- Minnesota 24
- Mississippi 4
- Missouri 7
- Montana 7
- Nebraska 4
- Nevada 2
- New Hampshire 4
- New Jersey 25
- New Mexico 6
- New York 62
- North Carolina 31
- North Dakota 1
- Ohio 22
- Oklahoma 8
- Oregon 7
- Pennsylvania 24
- Puerto Rico 2
- Rhode Island 2
- South Carolina 13
- South Dakota 3
- Tennessee 17
- Texas 55
- Utah 13
- Vermont 3
- Virginia 36
- Washington 21
- West Virginia 6
- Wisconsin 33
- Wyoming 3
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 824 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
IRONMAN 70.3 Coeur d'Alene is a half distance triathlon in Coeur d'Alene, Idaho, with a 1.2 mile swim in Lake Coeur d'Alene, a 56 mile bike through rolling hills, and a 13.1 mile run along the lake. World Championship qualification is available.
Set at Taughannock Falls State Park on Cayuga Lake, this triathlon weekend features intermediate, sprint, aquabike, relay and multiple youth distances with swim, bike and run courses using park trails and NYS Route 89.
The 21st Motor City Triathlon in June 2026 is held on Belle Isle in Detroit and features Olympic, Sprint and Super Sprint triathlons, aquabikes, a duathlon and relay options with varied registration windows and fees.
A USA Triathlon sanctioned multisport festival on June 21, 2026 at Buck Creek State Park offering youth and adult triathlon, duathlon, aquabike, aquathlon, open runs and open water swims with online only registration.
Race 1 of the Charleston Sprint Triathlon Series takes place in Charleston SC on June 21 2026, listed as a triathlon covering 15.475 Miles with registration shown as opening and closing on January 4 2026 and no fee.
E3 Endurance 7.03 Super Sprint Triathlon in Greensboro at Emerald Pointe Wetn Wild on June 21, 2026. Organized by Trivium Racing, the event has strict refund rules and allows entry transfers to another person for a $5 fee.
Combined trail run and guided rafting trips in New River Gorge National Park on July 12 and August 23, 2026. Each date pairs an about 11 mile run with a 7 mile Class V raft; rafting is booked through ACE Adventure Resort for $99.
A five day non stop 500K expedition race based in North Adams, Massachusetts. Teams of two to four navigate southern Vermont terrain including mountains, forests, waterways, gravel and single track.
A weekly series at Goleta Beach Park featuring swims, runs, and swim-run events with RFID chip timing and free parking. Online registration is required for each week.
A community summer triathlon at Cedar Lake offering Sprint, Relay and Super Sprint distances. Family friendly with a youth minimum for the Super Sprint, wetsuit guidance for cooler water, and preregistration required.
A 10.5 mile duathlon at Cone Park Trails in Sioux City on June 26 as part of Trail Fest, combining single-track running and two bike loops. Bikes start first; Level One eBikes are allowed and awards follow with onsite refreshments.
Experience a women focused multisport event at Waterloo State Recreation Area featuring triathlon, duathlon, and aquabike options. Enjoy scenic paved bike routes and mixed terrain runs followed by a festive post race pancake breakfast.
Black Diamond Triathlon is the RTB series season opener at Nolte State Park with swim, bike and run race formats across Olympic, sprint, aquabike and relays. Finishers receive a medal, a race T shirt guarantee date and a post race meal.
Bottomless Triathlon at Bottomless Lakes State Park in Roswell on June 27, 2026 features a super sprint format with a 1/4 mile swim, 8 mile bike and 4k run. Individual, coed relay and under 18 divisions are offered and proceeds support a local food b..
A one-day triathlon in Verona, Wisconsin on June 27, 2026 offering sprint and Olympic individual and relay races plus a series entry. Registration opens October 9, 2025 and closes October 18, 2025.
A sprint triathlon in Whitefish, Montana featuring a 1/2 mile open water swim in Whitefish Lake, a 20K out-and-back bike with four miles of hills, and a two lap 5K run at City Beach.
A sprint triathlon split into five short loops at Robious Landing Park, with adult, relay, and youth distances; relays alternate loops and youth complete two loops, and athletes remain within about one mile of spectators.
A multi event triathlon at Ideal Beach Waterpark in Elkhart on June 27, 2026 featuring a 400 yard swim, 12 mile bike and 3.1 mile run, plus kids competitive and non competitive races with lifeguards and course monitors.
Tri Nikiski in Nikiski, Alaska stages an untimed triathlon on June 27, 2026 with adult and kids divisions. The adult course is a 500 yard swim, 10.6 mile bike and a 5 km run, and relay teams can be two or three people.
A multi-format adventure race at Mt Telemark Village in Cable, Wisconsin offering 5 hour, 12 hour and 24 hour options featuring navigation, mountain biking and paddling. Registration runs from November 1, 2025 to January 11, 2026.