United States
- Alabama 11
- Alaska 4
- Arizona 18
- Arkansas 3
- California 65
- Colorado 18
- Connecticut 8
- Delaware 1
- District of Columbia
- Florida 42
- Georgia 11
- Hawaii 3
- Idaho 12
- Illinois 20
- Indiana 18
- Iowa 15
- Kansas 5
- Kentucky 11
- Louisiana 5
- Maine 6
- Maryland 15
- Massachusetts 15
- Michigan 21
- Minnesota 18
- Mississippi 6
- Missouri 4
- Montana 3
- Nebraska 4
- Nevada 2
- New Hampshire 4
- New Jersey 14
- New Mexico 3
- New York 51
- North Carolina 25
- North Dakota
- Ohio 17
- Oklahoma 5
- Oregon 5
- Pennsylvania 15
- Puerto Rico 2
- Rhode Island 1
- South Carolina 9
- South Dakota 2
- Tennessee 14
- Texas 46
- Utah 11
- Vermont 2
- Virginia 33
- Washington 14
- West Virginia 2
- Wisconsin 19
- Wyoming 2
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 654 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 multi discipline event with a point to point open water swim in Stansbury Lake, an out and back bike on local roads, and a 5k run around the lake.
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.
A USAT sanctioned youth triathlon in Cassadaga, NY for ages 4 to 15 with a 100 meter swim, 3 mile bike and 1 mile run. A separate para triathlete category is available and registration costs $29 plus a $10 USAT fee.
A run, bike, and run duathlon in Hamilton, MA on August 15, 2026 with 2.4 mile runs and a 9.7 mile bike leg; $20 registration includes refreshments and prizes.
Two-day Worthington YMCA triathlon with a kids event and an adult sprint plus three-person relay, held August 15-16, 2026 in Worthington MN.
A triathlon at June Lake Beach on August 15, 2026, offering swim, bike, and run distances from kids through long course in a mountain lake setting.
Tri CLE features triathlon, duathlon, and aquabike races at Edgewater Park in Cleveland with Lake Erie swims, a Memorial Shoreway bike course closed to traffic, and a lakeside run.
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.
A range of Olympic and Sprint triathlon, duathlon, aquabike, and relay races take place on August 16, 2026 at John Pennekamp Coral Reef State Park in Key Largo, with swims at the park beach and an out and back bike on Overseas Highway.
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 features a swim at Whiskeytown Lake, a net downhill bike through Shasta County and a flat, shaded run on the Sacramento River Trail.