United States
- Alabama 10
- Alaska 4
- Arizona 15
- Arkansas 1
- California 60
- Colorado 15
- Connecticut 3
- Delaware 2
- District of Columbia 1
- Florida 41
- Georgia 5
- Hawaii 4
- Idaho 9
- Illinois 18
- Indiana 11
- Iowa 9
- Kansas 2
- Kentucky 5
- Louisiana 6
- Maine 2
- Maryland 12
- Massachusetts 10
- Michigan 17
- Minnesota 7
- Mississippi 5
- Missouri 8
- Montana 5
- Nebraska 4
- Nevada 3
- New Hampshire 3
- New Jersey 8
- New Mexico 3
- New York 52
- North Carolina 22
- North Dakota
- Ohio 12
- Oklahoma 4
- Oregon 11
- Pennsylvania 17
- Puerto Rico 1
- Rhode Island 1
- South Carolina 8
- South Dakota
- Tennessee 12
- Texas 50
- Utah 15
- Vermont 1
- Virginia 28
- Washington 14
- West Virginia 2
- Wisconsin 20
- Wyoming 1
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 574 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
September 2026
A 5K run, 20K bike, and 5K run around Pleasant Ridge Park and county roads near Fairview and Girard, held on 09/20/2026. Individual and two person relay options are available and the event supports the Erie Cancer Wellness Center.
Newport Harbor Triathlon in Newport OR on September 20, 2026 offers adult and youth triathlons, an aquabike, a relay option, and an open 5K.
A Richland, Washington triathlon with a downriver Columbia River swim, a 56 mile bike through vineyards, and a flat 13.1 mile run finishing at Columbia Point Park.
Community triathlon in Albany CA on 20 September 2026 offering a Super Sprint, a mini triathlon for kids and relay team options.
Paddle, bike and run in Bay City on Sunday September 20, 2026 with team canoe or solo kayak options; limited field and proceeds support local community programs.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
Navigate Prairie Creek Reservoir by foot, canoe, and bike in this family friendly adventure race where teams use a map and compass to find hidden checkpoints.
Cal Tri Austin at Walter E. Long Metropolitan Park on September 20, 2026, offers 18 events across Olympic, sprint and youth sprint distances, including triathlon, duathlon, swim and run formats.
Sprint and Splash at Brandenburg Park in Chesterfield Township offers a 5K run or walk and an individual duathlon that includes a 2 mile kayak.
Triathlon trials in Pensacola FL on September 20, 2026 with event schedule and course maps available and results able to be auto posted via Twitter.
Two day triathlon festival at Lake Anna State Park offering Olympic and Sprint swim, bike and run events plus aquabike and relay options.
Multi-distance triathlon in Tarpon Springs with sprint and Olympic swim, bike and run options, plus duathlon, aquabike, relays, a 5K, awards and post-race food.
A duathlon event at Mendon Ponds Park produced by First Knight Racing, offering two race formats of 26 and 14 miles and a deferred entry option, with specified registration periods and fees.
IRONMAN 70.3 New York on September 26, 2026 features a sheltered swim in Zach's Bay, a flat fully closed 56 mile bike on Wantagh Parkway and a run along Jones Beach Boardwalk.
A charity sprint triathlon at Skyline Aquatics Center in Mesa, AZ that raises funds to help underprivileged children attend learn to swim and summer recreation programs. Timing is provided by 4 Peaks Racing with triathlon chips.
Sprint triathlon at Wrightsville Beach on 09/26/2026 with a 1200 m swim, 11 mile bike and 5K run; individual, relay, aquabike and youth divisions.
Four-leg multisport event in Port Angeles with mountain biking, kayaking, a 30 mile road bike, and a 10K run; solo Iron and team entries, all transitions at Pebble Beach Park.
A sprint-distance triathlon in Montrose on September 26, 2026, with youth, adult, team, and family divisions; proceeds support the Montrose Recreation Foundation.
Experience two days of mountain endurance in Colorado with technical mountain bike and trail running races including a 50K ultra and the 100K Epic Double challenge.
Coastal Traverse Adventure Race is a 12 hour, 60 miles event in Lewes, Delaware that combines biking, running, and paddling across beaches, marshes, parks, and coastal towns. Teams and solo racers choose multiple routes and optional checkpoints where..
A reverse triathlon at Civic Center Park and Aquatic Center featuring a 5k run, 12 mile bike and 150 yd swim, plus a kids triathlon and a stand-alone 5K.