United States
- Alabama 7
- Alaska 4
- Arizona 14
- Arkansas 3
- California 64
- Colorado 12
- Connecticut 3
- Delaware 3
- District of Columbia
- Florida 41
- Georgia 5
- Hawaii 5
- Idaho 10
- Illinois 19
- Indiana 6
- Iowa 11
- Kansas 5
- Kentucky 4
- Louisiana 2
- Maine 5
- Maryland 13
- Massachusetts 12
- Michigan 18
- Minnesota 10
- Mississippi 3
- Missouri 12
- Montana 7
- Nebraska 7
- Nevada 2
- New Hampshire 2
- New Jersey 14
- New Mexico 3
- New York 50
- North Carolina 22
- North Dakota
- Ohio 14
- Oklahoma 3
- Oregon 9
- Pennsylvania 21
- Puerto Rico 1
- Rhode Island 1
- South Carolina 10
- South Dakota
- Tennessee 8
- Texas 42
- Utah 18
- Vermont 1
- Virginia 30
- Washington 14
- West Virginia 2
- Wisconsin 26
- 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 594 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
May 2027
Multi-event triathlon and running day at Lake Anna State Park on May 16, 2027, offering Olympic and Sprint races, open-water swims, and multiple race options.
IRONMAN 70.3 Chattanooga on May 16, 2027 features a downriver Tennessee River swim, rolling bike terrain and a riverfront park run in Chattanooga, Tennessee.
IRONMAN Jacksonville is a May 16, 2027 triathlon in Jacksonville, Florida featuring a downriver St. Johns River swim, a flat bike course and a rolling run through downtown and riverfront.
Multi-distance triathlon and duathlon event in Kansas City offering Olympic, sprint, relay and duathlon formats, scheduled for May 16, 2027.
Sprint triathlon, duathlon and aquabike at Honeymoon Island State Park with a 1/4 mile swim, 12 mile bike and 5K run plus finisher medals and division awards.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
A community 5K at National Harbor on May 16, 2027 raising funds for the Potomac Riverkeeper Network to support clean water and river habitat protection.
Adventure-format race at Shawnee Mission Park with a 2 hour all on foot course and a 6 hour multi-discipline course including biking and paddling.
An open water event at Rockaway Beach with a 400 m swim, 12 mile bike and 3 mile run plus duathlon, relays and aquabike options.
Weekly multi-discipline races at Leadbetter Beach Park in Santa Barbara from May 19 to August 25, 2027, featuring a 5 km run, multiple swim distances, and kids races.
Three days of off road triathlon and trail running at Oak Mountain State Park in Pelham Alabama with XTERRA World Tour racing and youth championships.
A three day triathlon festival in Perrysville Ohio with individual races and a four person team relay across distances from 3.75 to 70.3 miles.
Open-water swims and a 5K run meet at the Downtown Safe Harbor Beaufort Marina with options from a 3.2 mile river swim to combined swim-run and relay formats. Proceeds support the Wardle Family YMCA Learn to Swim program.
Multi-discipline women's event at American Fork Recreation Center offering pool-swim triathlon, duathlon, aquabike, aquathon and a 5K with timed results and on-site support.
Bear Triathlon at Lums Pond State Park on May 22 and 23, 2027 features Sprint and Olympic races, aquabike and relay options, plus youth divisions under USA Triathlon sanction.
Onion Man Triathlon in Walla Walla offers an Olympic distance race with a 1.5 km swim, 40 km bike and 10 km run, capped at 300 participants.
Shi-Tri is a run, paddle and bike triathlon in Downtown Owosso along the Shiawassee River. Entrants may compete individually or as a 2 to 3 person relay and choose to race or take a recreational pace.
Multi-discipline event at Lake Manawa Beach on 23 May 2027 featuring sprint and relay triathlons, aquabike, aquathon, open-water swim and a duathlon, with swim, bike and run courses around the lake.
Lake Lou Yaeger Triathlon in Litchfield IL on May 23, 2027 features beach swim starts, sprint and Olympic distances, USAT sanctioning, and a lakeside finish festival.
Multi distance triathlon in East Meadow on May 23, 2027 featuring adult, high school and youth races with pool swims, closed roads for biking and park runs.
IRONMAN 70.3 Northern California in Redding on May 23, 2027 pairs a Whiskeytown Lake swim with a rolling bike through Shasta County and a flat Sacramento River Trail run.