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 14
- Illinois 21
- Indiana 23
- Iowa 21
- Kansas 7
- Kentucky 12
- Louisiana 8
- Maine 10
- Maryland 14
- Massachusetts 19
- Michigan 30
- Minnesota 24
- Mississippi 4
- Missouri 7
- Montana 7
- Nebraska 5
- Nevada 2
- New Hampshire 4
- New Jersey 25
- New Mexico 6
- New York 61
- North Carolina 30
- North Dakota 1
- Ohio 21
- Oklahoma 8
- Oregon 7
- Pennsylvania 24
- Puerto Rico 2
- Rhode Island 2
- South Carolina 12
- South Dakota 3
- Tennessee 17
- Texas 55
- Utah 13
- Vermont 3
- Virginia 36
- Washington 21
- West Virginia 5
- 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 818 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 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.
A second-year multisport challenge in Old Forge combining biking, hiking, running and a Moose River kayak leg over 26.5 miles; single and two-person team entries are offered and kayak rentals and a post-event barbecue are available.
A sprint multisport event at Dorchester Park in Whitney Point on June 27, 2026, featuring individual and relay triathlon, aquabike, and duathlon. Proceeds support the Broome County Parks Handicapped Playground Fund.
An adventure triathlon in Fayetteville, WV, combining 16.5 miles of mountain biking, 7 miles of Class IV whitewater and 9 miles of trail running. Options include solo, three person relays and four to six person raft teams with guides.
Loveland Lake to Lake Triathlon in Loveland Colorado offers Sprint, Olympic, aqua bike, relay, and SUP race formats on one Saturday in June. The USAT sanctioned event features a shaded lakeside venue, family amenities, and a post-race meal.
Eagle River Triathlon in Chugiak, Alaska hosts the 2026 Alaska State Championship for Olympic and Sprint triathlons, plus duathlon, relay and kids races on pool swims and out-and-back bike routes near the Chugach range.
Magnolia Hill Off Road XTRI & DU in Navasota TX offers off-road triathlon, duathlon, sprint, aquabike and relay races on June 27, 2026 with swim, mountain bike and trail run segments.
A community triathlon in Bethlehem, Pennsylvania on June 27, 2026 that brings together athletes of all abilities. Options include short and long courses, a relay team event, and an untimed aid category.