United States
- Alabama 11
- Alaska 4
- Arizona 12
- Arkansas 3
- California 65
- Colorado 18
- Connecticut 3
- Delaware 3
- District of Columbia
- Florida 40
- Georgia 12
- Hawaii 6
- Idaho 11
- Illinois 28
- Indiana 15
- Iowa 14
- Kansas 6
- Kentucky 7
- Louisiana 2
- Maine 8
- Maryland 13
- Massachusetts 15
- Michigan 24
- Minnesota 11
- Mississippi 3
- Missouri 13
- Montana 9
- Nebraska 7
- Nevada 3
- New Hampshire 2
- New Jersey 23
- New Mexico 3
- New York 58
- North Carolina 26
- North Dakota
- Ohio 23
- Oklahoma 4
- Oregon 10
- Pennsylvania 24
- Puerto Rico 1
- Rhode Island 1
- South Carolina 10
- South Dakota
- Tennessee 17
- Texas 45
- Utah 22
- Vermont 1
- Virginia 28
- Washington 20
- West Virginia 4
- Wisconsin 29
- 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 712 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
Triathlon, duathlon and aquabike races are held at Mirada Lagoon in San Antonio FL on November 15, 2026, with sprint, international and relay options.
A UCSB-hosted race day in Goleta featuring sprint triathlon races, a 5k fun run, and charitable support for a memorial fund.
A super sprint distance triathlon at the Montana State Wellness Center on Nov 15, 2026 with a 400 yard swim, 8 mile stationary bike and 2 mile run; donation entry and 30 participant cap.
Two short triathlon options in Springville on November 21, 2026, with pool swims, indoor cycle-studio rides, lap runs, and a included unisex t-shirt.
Indoor triathlon at Oak Brook Park District for ages 12 and up, combining 2000 meters rowing, 2.5 miles cycling and a 1.25 miles run or walk.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
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.
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.
A Black Friday endurance event in Emmaus offering cycling and running distances from 10k to 100 miles, relay and double-discipline options, elapsed-time scoring, and a beer prize format.
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.
A 12 hour adventure race at Lake Louisa State Park combining trekking, paddling, and mountain biking with canoes and safety gear provided.
December 2026
A multi-discipline festival at Daytona International Speedway featuring triathlon, duathlon, aquabike, a festive 5K, and team relays across multiple distances.
Trail running, mountain biking, and an off-road duathlon on the bluffs near Minnesota City with multiple distance options and a 120-participant limit.
A winter map and compass adventure race near Merrill, WI on December 5, 2026 offering 3-hour and 6-hour courses for solo racers and teams.
An indoor triathlon with timed swim, indoor bike and track run contested in heats, electronically timed with per-leg scoring and awards including Race Series entries.
An off road multi sport navigation race at Klondike Park combining paddling, mountain biking and trail travel with solo and team entry options.
IRONMAN 70.3 La Quinta in California features a Lake Cahuilla swim, a flat desert bike course with a Thermal Raceway lap, and a run through Silver Rock Golf Course.
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 in Bonner Springs on December 6, 2026 with swim, bike and treadmill run, adult and youth divisions, and medals for all 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.