United States
- Alabama 10
- Alaska 5
- Arizona 18
- Arkansas 3
- California 58
- Colorado 18
- Connecticut 10
- Delaware 2
- District of Columbia
- Florida 42
- Georgia 11
- Hawaii 3
- Idaho 13
- Illinois 21
- Indiana 19
- Iowa 17
- Kansas 7
- Kentucky 12
- Louisiana 6
- Maine 5
- Maryland 15
- Massachusetts 15
- Michigan 21
- Minnesota 19
- Mississippi 6
- Missouri 4
- Montana 4
- Nebraska 3
- Nevada 2
- New Hampshire 4
- New Jersey 15
- New Mexico 4
- New York 47
- North Carolina 28
- North Dakota
- Ohio 20
- Oklahoma 6
- Oregon 7
- Pennsylvania 20
- Puerto Rico 2
- Rhode Island 2
- South Carolina 10
- South Dakota 2
- Tennessee 15
- Texas 47
- Utah 12
- Vermont 2
- Virginia 32
- Washington 18
- West Virginia 2
- Wisconsin 19
- 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 680 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
October 2026
A one day multi sport meeting at Mitchell Park Guthrie Lake featuring sprint triathlon, super sprint, duathlon, aquabike, and a free Youth Under 12 option. The swim uses a protected cove and courses are looped for spectator access.
A two day triathlon festival in Rock Hall, Maryland featuring half, Olympic and sprint distances with triathlon, aquabike and relay options. Swim in Rock Hall Harbor and ride and run on largely flat to rolling rural roads.
A multi-format event at Lake Murray Dam featuring a 1000 meter lake swim, a 21 mile bike course that crosses the dam, and a 6 kilometer run along the dam. Registration opens November 1 2025 and deadlines vary by race.
A point to point triathlon in eastern Valley County Idaho from Warm Lake to Yellow Pine via a 7300 foot summit. Multiple divisions include able bodied, adaptive, and relay formats with awards and an after party in Yellow Pine.
A full day of multisport racing at Lake Brandt Marina in Greensboro, NC on October 3, 2026, with morning on road triathlon and duathlon followed by an off road triathlon and a Double Trouble award for completing both races.
A two day triathlon festival at the Hammerman Area of Gunpowder State Park in Chase, MD. It features women's and men's sprint triathlons, aquabike and duathlon options, team relays and a youth race for ages 6 to 15.
A point-to-point swim-run through the Cape Cod National Seashore on October 3, 2026, offering three distances. Competitors may race solo or as two-person teams; the event is part of the My SwimRun Championship Series.
A USAT sanctioned sprint distance triathlon on Pensacola Beach featuring a 550 m swim, 21 km bike and 5 km run, with divisions including individual, adaptive, Athena, Clydesdale, aquabike and relays and a complimentary postrace meal.
A sprint triathlon in Alamosa, Colorado on October 3, 2026 featuring a 400-yard swim, 10-mile bike and 5k run. Individual and 2- or 3-person team entries, age-group awards and finishers' medals.
A draft legal sprint triathlon for NCAA collegiate women at Clinton Lake SRA featuring a 750 m swim, 12 mile bike and 3.2 mile run, organized in two waves with segment time limits.
An off-road paddle run bike triathlon at Northfield Mountain featuring mass start paddles on the Connecticut River, trail running and single track mountain biking, with chip timing and staffed transitions.
ÖTILLÖ Colorado USA is a high altitude swimrun in Fort Collins combining open-water swims at Horsetooth Reservoir with trail runs in Lory State Park across three distances.
A multisport event at Marine Creek Public Boat Ramp in Fort Worth on October 4, 2026 offering sprint and Olympic triathlons, a duathlon, relay team options, and a virtual race with mailed t shirt and finisher medal.
IRONMAN 70.3 Waco on October 4, 2026 features a Brazos River swim, a flat bike course and a rolling run with the finish on the historic Waco Suspension Bridge.
MightyMan Montauk is an annual triathlon festival at Fort Pond offering Olympic and Sprint triathlons plus an Aquabike option, with an out-and-back freshwater swim, bike loops through Montauk, and lake-adjacent run courses.
A pool swim, 12 mile bike and 3.1 mile run at the Mattoon Area Family YMCA on October 4, 2026. Individuals or teams of two or three may enter and helmets are required for the bike segment.
HoosierMan Triathlon on October 4, 2026 at Lake Lemon near Bloomington, Indiana offers sprint and Olympic triathlons, a sprint duathlon, aquabike options and team relays. The USAT sanctioned, chip timed event features a lake swim, rolling bike course..
A youth triathlon on Pensacola Beach with a Gulf swim and bike and run courses along Highway 399 closed to vehicular traffic. Finisher medals are awarded and top three finishers in each age group receive custom awards.
A Central Park duathlon on October 4, 2026 offering solo and team formats, including a unique two-person boat relay that finishes on the Lake. Distances include 2.2 mile runs and 12 miles of cycling.
Multi-loop ultra triathlon at Lake Anna State Park with single, 1.5x, and double distances, measured loops, USAT sanctioning, and required safety equipment.