United States
- Alabama 13
- Alaska 11
- Arizona 19
- Arkansas 5
- California 61
- Colorado 21
- Connecticut 21
- Delaware 3
- District of Columbia
- Florida 47
- Georgia 16
- Hawaii 3
- Idaho 15
- Illinois 26
- Indiana 26
- Iowa 22
- Kansas 7
- Kentucky 13
- Louisiana 8
- Maine 11
- Maryland 17
- Massachusetts 21
- Michigan 35
- Minnesota 26
- Mississippi 5
- Missouri 9
- Montana 10
- Nebraska 4
- Nevada 2
- New Hampshire 4
- New Jersey 28
- New Mexico 7
- New York 66
- North Carolina 35
- North Dakota 1
- Ohio 23
- Oklahoma 8
- Oregon 8
- Pennsylvania 29
- Puerto Rico 2
- Rhode Island 3
- South Carolina 15
- South Dakota 3
- Tennessee 20
- Texas 56
- Utah 15
- Vermont 3
- Virginia 38
- Washington 22
- West Virginia 6
- Wisconsin 32
- Wyoming 4
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 895 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
A pool based triathlon in Bountiful Utah on September 7, 2026 with sprint and novice distances. The race follows swim bike run order and includes a shared transition area, helmet required bike segments, and participant shirts and finisher medals.
Celebrate Labor Day at the Oak Point Recreation Center with a full suite of multisport races including triathlons, duathlons, and youth events followed by a festive picnic in Plano.
An ultra triathlon at Ottawa Lake State Park in Dousman, Wisconsin offering formats from half distance to 1.5x and longer. Short repeat loops, an athlete village with personal crew access, and 24 hour medical support provide continuous on course assi..
Join this midweek sprint triathlon at Rolling View State Park in Durham. Experience a 400 yard swim along with a flat 11 mile bike ride and a 2 mile run through the park scenery.
A triathlon in Syracuse, Utah on September 11, 2026 featuring a spectator friendly swim at Stillwater Lakes, a bike route on Antelope Island State Park and a flat run on paved bike trails. Multiple triathlon, aquabike and duathlon categories are offe..
A two day triathlon on Roanoke Island with swim in the Croatan Sound and Olympic, Sprint, and aquabike options.
A multi-sport adventure relay across Sugarite Canyon and Lake Maloya combining a trail run, lake paddle, mountain bike ascent into Colorado, and a shotgun course. Open to solo competitors and 2-4 person relay teams, held Sept 11-12, 2026.
Test your endurance at Smith Mountain Lake State Park with ultra distance triathlons, duathlons, and aquabikes. This USA Triathlon sanctioned event offers distances up to 281 miles through Virginia’s scenic Blue Ridge Mountains.
An evening double sprint triathlon in Greenville featuring two sequences of a 250 yard pool swim, an 8 mile bike and a 2 mile run. Individual and relay entries are available with relay teams of 2 or 3 and exchanges in transition.
IRONMAN 70.3 Wisconsin in Madison on September 12, 2026 features a Lake Monona swim, rolling hills on the bike and a waterfront run with the State Capitol at the finish. The race serves as a 2027 IRONMAN 70.3 World Championship qualifier.
A paddle-and-run event at Higgens Point, Coeur D Alene on September 12, 2026, with short and long courses offered for individuals and teams. Event proceeds benefit Companions Animal Shelter.
Multi-format races at Tugaloo State Park include Olympic, aquabike, sprint and relay options with a time trial swim and a hilly out and back bike course.
Square Lake 70.3 is a USAT certified half distance triathlon in Stillwater MN featuring a 1.2 mile swim, 57 mile bike and 13.1 mile run with on course nutrition, two loop bike course and post race barbecue.
Event Details
The Mighty Mississinewa Triathlon takes place at the Miami State Recreation Area in Peru, Indiana. It is a USAT-sanctioned event. Participants must be aged 12 and up by December 31 of the race year.
Distances and Formats
The event featu..
Experience a scenic multisport event at Carolina Marina featuring triathlon, duathlon, and aquabike options. Race through clear lake waters and rolling bike terrain in this professionally organized Olympic distance competition.
A multi-discipline race day at Liberty Station in San Diego on September 12, 2026. Events include Olympic and Sprint triathlons, aquabike, duathlon, aquathlon, and a 5K run along the waterfront.
A sprint triathlon at Lake Hopatcong on September 12, 2026, featuring a 400 m swim, 12.5 mile bike and 3.1 mile run. The event supports the Hopatcong PBA and offers registration for solo and team entries.
VentureQuest Adventure Race is at Rocky Gap State Park in Flintstone, MD on September 12, 2026. It offers 8 hour and 24 hour courses with trekking, paddling, mountain biking and navigation for solo competitors and teams up to four.
A USAT sanctioned triathlon at Craigville Beach offering sprint and Olympic distances plus relays, aquabike, duathlon, aquathlon and a virtual Tri It Your Way option. Massachusetts residents can earn state championship ranking points.
VentureQuest is a navigation-based adventure race at Rocky Gap State Park combining trekking, mountain biking and paddling. Solo competitors and teams of up to four follow varied routes in timed 8 hour and 24 hour formats.