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
IRONMAN 70.3 Coeur d'Alene on June 21, 2026 features a 1.2 mile swim in Lake Coeur d'Alene, a 56 mile bike through rolling hills, and a 13.1 mile run along lakeside paths.
A triathlon at Taughannock Falls State Park on Cayuga Lake offering intermediate, sprint, aquabike and youth distances with lake swims, road bike routes on NYS Rte. 89 and park runs near the falls. The park includes camping, a marina and a beach.
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.
A triathlon held in Charleston, SC on June 21, 2026, listed as Race 1 in the Charleston Sprint Triathlon Series with a course of 15.475 Miles and free registration recorded on the event listing.
A sprint triathlon at Hempfield recCenter on June 21, 2026 combining a 300 m pool swim, a 16 mile bike through Lancaster County farmland and a 3 mile out and back run. Proceeds benefit the Everyone Belongs Campaign.
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.
A combined trail run and guided raft trip in New River Gorge National Park on three summer dates, featuring about 11 miles of trail to Cunard and a 7 mile ACE Adventure Resort rafting return, limited to 16 participants per date.
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 midweek summer triathlon at Cedar Lake in Chester CT offering sprint and super sprint formats for individuals and relay teams. Short lake swims, bike and run courses with family-friendly entry rules 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 on June 27, 2026 at Nolte State Park offers Olympic, Sprint, AquaBike, Super Sprint and relay options, with a Deep Lake swim and bike and run courses through Ravensdale, Selleck and Enumclaw, plus race amenities for all finish..
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-format triathlon at Ideal Beach Waterpark in Elkhart, IN on June 27, 2026, featuring sprint individual and relay races plus timed and non-timed kids events with lifeguards and on-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.