United States
- Alabama 13
- Alaska 13
- Arizona 17
- Arkansas 7
- California 70
- Colorado 18
- Connecticut 16
- Delaware 5
- District of Columbia
- Florida 51
- Georgia 17
- Hawaii 4
- Idaho 17
- Illinois 33
- Indiana 36
- Iowa 23
- Kansas 8
- Kentucky 12
- Louisiana 9
- Maine 11
- Maryland 18
- Massachusetts 28
- Michigan 38
- Minnesota 28
- Mississippi 6
- Missouri 15
- Montana 10
- Nebraska 3
- Nevada 3
- New Hampshire 2
- New Jersey 31
- New Mexico 9
- New York 76
- North Carolina 34
- North Dakota 1
- Ohio 25
- Oklahoma 8
- Oregon 12
- Pennsylvania 33
- Puerto Rico 1
- Rhode Island 3
- South Carolina 19
- South Dakota 3
- Tennessee 27
- Texas 57
- Utah 19
- Vermont 3
- Virginia 38
- Washington 32
- West Virginia 8
- Wisconsin 33
- Wyoming 3
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 999 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
Experience an unpredictable point to point adventure triathlon through the 2000 acre Nickerson State Park. Choose between swimming or stand up paddleboarding in this unique Cape Cod endurance event.
Experience a 12 hour adventure race through the Marin Headlands and San Francisco Bay. Teams of one to four navigate by map and compass while trekking mountain biking and paddling across 50 miles of historic coastal terrain.
A one-day adventure race in Greenfield Massachusetts combining mountain biking, running, paddling and map and compass navigation across the Connecticut River Valley. The modified rogaine format includes a mandatory route plus optional checkpoints for..
A sixth annual fundraising event on the Oakdale Trail system in Lapeer, MI featuring single-track mountain bike races, a 5K run/walk/ruck, youth bike races, craft beer and food vendors; multiple distances and award categories are offered.
A scenic sprint triathlon concludes the Wisconsin Triathlon Series in Baraboo. Athletes swim in Devil's Lake, bike through the bluffs, and run along park roads. The event offers individual and relay options for a full racing experience.
Swim, bike, and run at Lake Welch Beach in Harriman State Park. The event offers triathlon and duathlon options for adults and free races for juniors. All finishers get a medal, and the course features scenic lake and park views.
Experience a scenic multisport event at Marsh Creek State Park featuring a lake swim and a beautiful bike course through Pennsylvania forests. Choose from triathlon, aquabike, or relay options in this sanctioned sprint race.
Experience a premier multi-sport weekend at Robious Landing Park featuring sprint triathlons, youth races, and an elite NCAA Collegiate Cup. Race along the James River on fast courses designed for all ages and experience levels.
A long running Olympic distance triathlon in Reston featuring a 1500 m swim, 25 mile bike and 10K run, with aquabike and relay options and awards for overall and age group finishers.
Multisport event on September 20, 2026 at Bayview Park in Long Beach Island offering triathlon, duathlon, aquabike and relay options, with a bay swim and flat bike and run courses through Long Beach Island and Beach Haven.
Carlyle Lake Triathlon on September 20, 2026 features sprint and Olympic distances around Carlyle Lake with a rolling beach swim start, flat bike course, and finish over the spillway; the event includes packet pickup, USAT sanctioning, awards, and a..
A season-ending multisport event at Horseneck Beach in Westport on September 20, 2026, offering individual and relay triathlon and duathlon formats plus an aqua bike, with published age minimums, entry fees, and early discount offers.
Last TRI at Stony Creek Metropark on September 20, 2026 offers multiple triathlon, aquabike, duathlon and relay events with a closed bike course and an emphasis on safety amid park scenery.
Race the Kiel Raider Nation Triathlon on September 20, 2026 at Kiel High School with sprint and aquabike options, a 5K and kids races for all ages. Family friendly and community focused, proceeds benefit the Kiel High School Booster Club.
One Last Tri wraps up the season at White Bear Lake with sprint and Olympic triathlons, aqua bike and relay options. The course combines a rolling bike through Stillwater horse country with a flat lakeside run.
The Tulsa Tri features swim, bike, and run events at scenic Birch Lake. Options include Sprint and Olympic distances, relay teams, and dedicated swim-only races. It is organized by the local Tulsa Area Triathletes club.
The Dirty Mitten Gravel Triathlon is a multisport event based at Camp Manitou-lin in Michigan. It features sprint and Olympic distance options, including triathlon, duathlon, aquabike, and relay formats. A virtual participation option is also availab..
Experience a beautiful coastal race at Wallis Sands State Park featuring a flat seacoast bike course and oceanfront runs. Choose from triathlon, duathlon, or aquabike formats in this USA Triathlon sanctioned event in New Hampshire.