United States
- Alabama 13
- Alaska 11
- Arizona 20
- Arkansas 5
- California 61
- Colorado 21
- Connecticut 21
- Delaware 3
- District of Columbia
- Florida 47
- Georgia 16
- Hawaii 3
- Idaho 15
- Illinois 25
- Indiana 26
- Iowa 22
- Kansas 7
- Kentucky 13
- Louisiana 8
- Maine 11
- Maryland 17
- Massachusetts 21
- Michigan 35
- Minnesota 26
- Mississippi 5
- Missouri 9
- Montana 10
- Nebraska 4
- Nevada 2
- New Hampshire 4
- New Jersey 28
- New Mexico 7
- New York 66
- North Carolina 35
- North Dakota 1
- Ohio 23
- Oklahoma 8
- Oregon 8
- Pennsylvania 29
- Puerto Rico 2
- Rhode Island 3
- South Carolina 15
- South Dakota 3
- Tennessee 20
- Texas 56
- Utah 15
- Vermont 3
- Virginia 38
- Washington 22
- 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 895 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
July 2026
A youth triathlon in Woodbridge on July 19, 2026, with age-specific swims, obstacle sequences, and runs. Lifeguarded swims, flotation aids for ages 5–6, a $25 entry fee, and a finisher medal, shirt, and swim cap for every participant.
A youth triathlon at Northwestern Medicine Delnor Fitness and Health Center featuring pool swims and trail runs for ages 6 to 17, chip timing, finisher medals, and a required USAT license.
A mid-summer Cedar Lake triathlon in Chester, CT offering sprint and super sprint formats with individual and relay entries. Preregistration is required and specific safety, equipment, and age rules apply.
A three day indoor hybrid fitness race in Boston combining a 5 km run with ten functional fitness zones. Features Elite and Age Group heats, Ruck waves, 2 Person and 4 Person teams, plus a DEKA FIT Ultra option.
A new IRONMAN 70.3 in Boise on July 25, 2026 combines a river and reservoir swim, a hilly bike through the foothills and a flat run along the greenbelt. The race is a World Championship qualifier and highlights local scenery.
A multidistance triathlon in Oconomowoc, Wisconsin on July 25, 2026 featuring a swim in Lac La Belle, a bike through glacial countryside, and a run through downtown. Sprint, Olympic, Half Iron and relay options are available.
A sprint and Olympic distance triathlon in Guntersville, AL, featuring a time-trial lake swim, a mostly flat bike loop with a mount/dismount line, and a paved lakeside run. Multiple race formats and USAT-sanctioned age-group awards are offered.
Experience a flat and fast course at Lake Springfield with sprint, olympic, and half distance options. Enjoy a calm lake swim followed by a shaded run and scenic bike path in the heart of Illinois.
A patriotic multisport event in Northwood, Iowa on July 25, 2026 where first responders lead off the field. Sprint triathlon, relay, aquabike, and duathlon options are offered, with proceeds supporting local first responder agencies and a scholarship..
A multisport race day at Laurel Lake, Millville, NJ featuring triathlon, duathlon, aquabike, aquathlon, super sprint, and relay options, with defined swim, bike, and run distances and USAT membership and ID requirements for multisport entrants.
A pool sprint triathlon in Oak Ridge on July 25, 2026 combining a 500 meter swim, a 15 mile bike and a 5K run. Divisions include Athena, Clydesdale, mixed relay and aquabike with a stated no refund policy.
Tri Millennium on July 25, 2026 at Millennium Park in Grand Rapids offers sprint and Olympic triathlon, duathlon, aquabike and relay options plus youth races. Registration includes a shirt, medal, and free entry into the Michigan Tri Series.
A 24 hour team adventure race in the Adirondack Mountains near Elizabethtown, NY, combining single track mountain biking, navigation, and packrafting. Teams of two to four only; boats must be provided by teams.
A paddle triathlon on July 25, 2026 offering solo tandem and relay classes, staggered paddle starts every 30 seconds, a mixed trail and road run, and an after party at the Hayward Curling Club with proceeds benefiting the club.
A multi-event day at Lewis & Clark Lake and Main Street Crofton featuring kayak-run-bike triathlons, a half marathon and a 12 mile bike ride. Participants must be 14 or older and must wear helmets and life jackets.
A multi-format triathlon at Mountain Run Lake Park in Culpeper, VA, offering Olympic and Sprint distances, aquabike options, and 2-3 person relays, with lake swims and rolling bike and run courses framed by Blue Ridge views.
A triathlon in Merrill featuring a 2 mile paddle, a 17.5 mile bike, and a 5K run through local parks. Multiple divisions include solo, 19U, relay, tandem, and eBike, with awards for top finishers and community beneficiaries.
A lakeside race in Shell Lake, Wisconsin featuring concurrent sprint triathlon and duathlon formats around a 2,600-acre lake, with individual and team entries and medals for all participants.
A community triathlon in McPherson, Kansas featuring adult and junior races plus team and corporate categories. The event uses McPherson Water Park and Lakeside Park with swim, bike, and run legs.
A multi-sport event at Millennium Park in Grand Rapids on July 25, 2026, with sprint and Olympic triathlon formats plus duathlon and aquabike. Proceeds support Bridge Street Ministries and volunteer and team roles are offered.