United States
- Alabama 7
- Alaska 4
- Arizona 14
- Arkansas 3
- California 63
- Colorado 12
- Connecticut 3
- Delaware 3
- District of Columbia
- Florida 40
- Georgia 5
- Hawaii 5
- Idaho 10
- Illinois 19
- Indiana 6
- Iowa 11
- Kansas 5
- Kentucky 4
- Louisiana 2
- Maine 5
- Maryland 13
- Massachusetts 7
- 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 25
- 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 586 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
November 2026
Kendra's Race in Goleta features collegiate and open sprint triathlons plus a relay division and a 5k fun run on campus swim bike and run courses.
An adventure race in Little Rock with 4 hour and 12 hour courses featuring navigation, biking, paddling, ropes, and team or solo entry options.
Indoor triathlon at Oak Brook Family Recreation Center featuring rowing, cycling, and a 1.25 mile run or walk for ages 12 and up.
An indoor triathlon at the RecPlex combining timed pool swim, spin bike, and treadmill run with equal scoring across the three disciplines.
A Cincinnati hill-climb event featuring run/walk/ruck, bike, and duathlon options with in-person and virtual entries and online registration.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
Three day, 320 mile invitation only ultra endurance event on Hawaii Island with a swim, two long bike stages, and a double marathon run for 40 participants.
Black Friday endurance event on the FSX course with cycling and running distances, a $25 entry plus a 6-pack, relay options, and elapsed-time scoring.
A run-swim-paddle challenge in Lanikai on November 28, 2026, with Solo, Relay, and Team divisions; free entry with optional donations for participant items.
December 2026
Experience a unique sports festival at the iconic Daytona International Speedway featuring triathlons, duathlons, and a festive 5K. Race through over one million holiday lights or compete on the legendary oval track.
A winter map-and-compass adventure race in Merrill, WI on December 5, 2026 with 3-hour and 6-hour formats for solo racers and teams.
An indoor triathlon with timed swim, indoor cycling on Stages SC3 bikes, and a track run, run in six heats with emailed results and Race Series entries for top finishers.
An 8 hour off road adventure race near St Louis combining navigation, paddling, biking and running on a secret course with solo and team divisions.
A December triathlon in La Quinta with a Lake Cahuilla swim, a flat bike course including a lap at Thermal Raceway, and a run through Silver Rock Golf Course with mountain views.
Experience the Treasure Coast Tri at Jetty Park in Fort Pierce. Choose from triathlon, duathlon, or aquabike distances and enjoy a unique finish line located directly on the jetty.
Indoor triathlon at Bonner Springs Family YMCA on December 6, 2026 with timed swim, bike and treadmill run, age divisions, and medals for finishers.
A 26th annual sprint multisport event in Anthem, Arizona featuring a heated pool swim, a separated 20 km bike course and an out and back 5 km run plus youth and aquabike options.
A swim and triathlon festival at Lawrence Park Swim Club with pool swims, runs, multisport races and virtual options.
Coast to coast off road 250 to 300 mile bikepacking, packraft and ultra running event with GPX navigation and required tracking.
IRONMAN 70.3 Florida is a triathlon in Haines City, FL, at Lake Eva Park with a lake swim and rolling bike and run courses.
Key West Triathlon returns to Key West, Florida on December 13, 2026, organized by Integrity Multisport with a finish area accompanied by music and spectators.