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 26
- 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 896 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
August 2026
A triathlon and duathlon at the Shelby YMCA on August 15, 2026, with individual and team options, defined distances, age-group awards, and tiered registration fees.
A short-course triathlon on August 15, 2026 in O'Fallon, IL featuring a 150 m pool swim, 10 mile bike through rolling hills, and a 2 mile flat run. Post-race breakfast is available and proceeds support a memorial foundation.
Tri CLE on August 16, 2026 offers triathlon, duathlon and aquabike races at Edgewater Park with a Lake Erie swim, a closed-to-traffic bike course on the Memorial Shoreway, and run routes along the lakefront, plus relay options.
Michigan Titanium in Grand Rapids on August 16, 2026 features triathlon, duathlon, aquabike, relay and swim only races plus a virtual solo option, with distances from sprint up to the full 140.6 mile ultra triathlon.
Join this USAT sanctioned event in West Deptford featuring a pool swim triathlon, duathlon, and aquabike. With distances ranging from a 5k run to a 16 mile triathlon, there is a multi sport option for every athlete.
Peasantman is a USA Triathlon sanctioned multisport event at Indian Pines Park in Penn Yan on August 16, 2026. It features Steel Distances across full, half, intermediate and sprint formats plus a Kids Splash and Dash and local charitable support.
Multiple triathlon, aquabike, and duathlon formats take place on August 16, 2026, in Mackinaw City with a swim under the Mackinac Bridge, a bike route to Wilderness State Park, and finishes in Fort Mackinac Park.
A multi race event in Chula Vista on August 16, 2026 featuring triathlon, duathlon, aquabike, relays, youth races and a 5K. It is Event 2 of the San Diego Triathlon Series and part of the Triple Crown.
Experience a unique multisport event at John Pennekamp Coral Reef State Park in Key Largo. Choose from triathlon, duathlon, and aquabike distances featuring clear water swims and scenic coastal cycling.
August 16, 2026 at Caesar Creek State Park Beach in Waynesville Ohio, this multisport festival offers triathlon, duathlon, aquabike, aquathlon, open swims and open runs from beginner to 1/3 Iron distances, with shirts, medals and on-site medical and..
A multi-format triathlon at Lakeside Park in Cazenovia, NY, featuring intermediate, sprint and high school races plus aquabike and relay options, organized by the CNY Triathlon Club with youth programs and a high school support fund.
A one-day multi-sport event at Lake Arrowhead in Luray, VA on August 16, 2026, offering Olympic and Sprint triathlon, duathlon, and aquabike races in individual and relay divisions.
A family-run triathlon at Lake Mary near Flagstaff offering Long and Olympic courses with views of the San Francisco Peaks and nearby lakes. The event provides medals for all finishers and uses RFID timing.
Team-based Olympic distance triathlon in Grand Rapids on August 16, 2026, with Captain and Angel roles, volunteer opportunities, and an Olympic course of 0.93 mile swim, 40K bike, and 10K run.
IRONMAN 70.3 Northern California in Redding on August 16, 2026 is a swim, bike and run triathlon that starts at Whiskeytown Lake and continues through Shasta County. The bike has net downhill sections and the run follows the flat, shaded Sacramento R..
Americana YMCA presents a youth Splash and Dash combining pool laps and running for ages 3 to 18 with individual and two person team divisions. Results use start and finish times and medals are awarded by division.
IRONMAN 70.3 Louisville features a swim in the Ohio River, a bike through Kentucky rolling hills, and a run on downtown historic streets and parks. The event is currently on pause while county road and highway improvements take place.
A multi-activity event on August 16, 2026 at Memorial Field in Concord NH where participants select three activities from biking, a 5k walk or run, Bootcamp, or yoga; virtual entry, youth categories, donations, and event merchandise are available.
A sprint triathlon on August 16, 2026 at Camp Buckner featuring a 750 meter swim, 22 km bike and 5 km run, plus a youth triathlon and a post-race clinic the day before.
The T Rex Triathlon & Duathlon Series offers three midweek sprint race dates in June, July and August 2026 at Island Lake State Recreation Area. Events include sprint triathlon and duathlon distances and finishers receive medals and finish food.