United States
- Alabama 11
- Alaska 4
- Arizona 18
- Arkansas 3
- California 65
- Colorado 18
- Connecticut 8
- Delaware 1
- District of Columbia
- Florida 42
- Georgia 11
- Hawaii 3
- Idaho 12
- Illinois 20
- Indiana 18
- Iowa 15
- Kansas 5
- Kentucky 11
- Louisiana 5
- Maine 6
- Maryland 15
- Massachusetts 15
- Michigan 21
- Minnesota 18
- Mississippi 6
- Missouri 4
- Montana 3
- Nebraska 4
- Nevada 2
- New Hampshire 4
- New Jersey 14
- New Mexico 3
- New York 52
- North Carolina 25
- North Dakota
- Ohio 17
- Oklahoma 5
- Oregon 5
- Pennsylvania 15
- Puerto Rico 2
- Rhode Island 1
- South Carolina 9
- South Dakota 2
- Tennessee 14
- Texas 46
- Utah 11
- Vermont 2
- Virginia 33
- Washington 14
- West Virginia 2
- Wisconsin 19
- Wyoming 2
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 655 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 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 offering full, 1.5x, double and half distances with swim bike and run segments.
Olympic and Sprint triathlon and aquabike races at Pleasants Landing Marina on Lake Anna featuring time trial swim starts and spectator friendly courses.
A fall run, bike, run duathlon at Cedar Creek Park in Seaford, NY, featuring 1.1 mile runs and 11 miles of closed-road cycling. Individual, relay, family and virtual options are available with specific family relay rules.
A map‑based multisport event in Jamestown on October 10, 2026 featuring 5 hour and 15 hour paddling, biking and trekking formats for solo and team entries.
A multisport event at TVA Melton Hill Dam on 10/10/2026 with Half Iron, Olympic and Sprint triathlons, a duathlon and relay options. Swim, bike and run courses circle the dam with on-site parking and campground nearby.