United States
- Alabama 7
- Alaska 4
- Arizona 13
- Arkansas 3
- California 62
- Colorado 11
- Connecticut 3
- Delaware 3
- District of Columbia
- Florida 40
- Georgia 5
- Hawaii 5
- Idaho 10
- Illinois 24
- Indiana 9
- Iowa 13
- Kansas 5
- Kentucky 4
- Louisiana 2
- Maine 5
- Maryland 13
- Massachusetts 12
- Michigan 21
- Minnesota 11
- Mississippi 3
- Missouri 12
- Montana 7
- Nebraska 7
- Nevada
- New Hampshire 2
- New Jersey 17
- New Mexico 3
- New York 55
- North Carolina 25
- North Dakota
- Ohio 20
- Oklahoma 3
- Oregon 10
- Pennsylvania 22
- Puerto Rico 1
- Rhode Island 1
- South Carolina 10
- South Dakota
- Tennessee 10
- Texas 47
- Utah 19
- Vermont 1
- Virginia 30
- Washington 14
- West Virginia 2
- Wisconsin 27
- 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 629 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
October 2027
Trail Run Bike Run at Lake Hodges in San Diego on October 17, 2027, covering about 23 miles with individual and team options and a cupless aid station policy.
A regional adventure race in southeastern Wisconsin offering 3, 8, and 18 hour options with choose your own adventure style navigation and mixed paddling, trekking, and biking.
Triathlon at Lake Berryessa in Napa Valley on Oct 23, 2027, offering Open, Sprint, Olympic and Long Course distances amid lakeside scenery.
An open water swim event at Saint Pete Beach with team relay and individual options that supports the Florida Wildlife Corridor.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
Lake Havasu on October 24, 2027 offers 12 race options from sprint swims and 5K runs to Olympic distance triathlons on waterfront courses.
Full distance IRONMAN in Sacramento with a 2.4 mile downriver swim, 112 mile flat bike, and 26.2 mile run finishing at the California State Capitol.
November 2027
IRONMAN 70.3 Waco is a triathlon in Waco Texas with a Brazos River swim, a flat bike through rural Texas, and a finish at the historic Waco Suspension Bridge.
August 2029
A multi-format triathlon in St. Cloud on 08/01/2029 offering sprint, Olympic, and relay options with online and in-person registration and tiered fees; organizers note possible cancellation and deferral options.