United States
- Alabama 7
- Alaska 4
- Arizona 14
- Arkansas 2
- California 57
- Colorado 12
- Connecticut 3
- Delaware 3
- District of Columbia
- Florida 40
- Georgia 3
- Hawaii 5
- Idaho 10
- Illinois 19
- Indiana 6
- Iowa 11
- Kansas 5
- Kentucky 4
- Louisiana 3
- Maine 5
- Maryland 13
- Massachusetts 7
- Michigan 18
- Minnesota 10
- Mississippi 3
- Missouri 12
- Montana 6
- Nebraska 7
- Nevada 2
- New Hampshire 2
- New Jersey 14
- New Mexico 3
- New York 50
- North Carolina 19
- North Dakota
- Ohio 13
- Oklahoma 3
- Oregon 9
- Pennsylvania 21
- Puerto Rico 1
- Rhode Island 1
- South Carolina 10
- South Dakota
- Tennessee 8
- Texas 43
- Utah 17
- Vermont 1
- Virginia 30
- Washington 14
- West Virginia 2
- Wisconsin 25
- 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 573 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 sprint triathlon at Beachwalk Community in St Johns, FL on October 25, 2026 featuring a 1/4 mile swim, 8 mile bike and 3.1 mile run; event is sold out.
The 13th Annual Boo Bash Triathlon takes place October 25, 2026 at Portland Aquatic Center in Texas with three triathlon options from 7 to 17 miles. Registration runs February 1 to October 1 and fees vary by event.
A fall duathlon in Chalmette, Louisiana on October 25, 2026 with a 2 mile run, 10 mile bike, and 2 mile run. Registration runs April 13 to October 20 with a $32 fee and event T shirts for registrants.
A Halloween multisport event at Merrill Ranch featuring pool swims, looped bike courses and short runs with adult, youth, duathlon and aquabike formats.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
A point to point triathlon from Lake Mead to Wilbur Square in Boulder City the weekend before Halloween, offering Sprint, Olympic, aquabike and relay formats.
Mini Tri comp only on October 31, 2026 in Fort Lupton features 15 minute swim bike run slots, combined time scoring, and prizes for fastest time and costumes.
Trail 5K, a 1 mile walk and a roughly 2 km kayak option at Steyer Nature Preserve, with proceeds benefiting the Sandusky River Watershed Coalition.
Sprint triathlon, duathlon and aquabike events in Inverness FL on October 31 2026 with finisher medals and awards across age and specialty categories.
Pumpkin Man in Sammamish pairs a hilly 10 mile road bike and a 5 mile technical trail run on October 31, 2026, with technical long sleeve shirts and finisher medals.
November 2026
Morro Bay Triathlon on November 1, 2026 features Olympic and Sprint triathlons with swim, kayak and SUP options, relay divisions, and a separate waterfront 5K.
A multisport race day at Newport Dunes offering twelve sprint and Olympic events, held at the same site since 1978 and serving as the Cal Tri Events National Championship.
A multi-format triathlon event at Cocoa Riverfront Park on November 1, 2026, featuring international and sprint triathlons, aquabike, duathlon, and relay divisions along the Indian River.
A fall duathlon in Prospect Park featuring a 2.1 mile opening run, a 10 mile three-lap bike, and a 3.3 mile final loop with about 140 ft of climbing. Post race barbecue and volunteer opportunities are available.
A Baytown park event offering a 10K combo of a 5K bike plus 5K trail run or 5K-only options, with shirts, medals, and helmets required for riders.
A 12-hour beach themed adventure race in Lewes, Delaware where teams and solo racers navigate the Delmarva Peninsula by bike, foot and paddle over varied coastal terrain.
Two triathlon options in Long Beach on E Ocean Blvd, featuring open-water swims, out-and-back bike courses open to traffic, and stocked aid stations; registration includes timing, a shirt, medal, and post race food.
A full IRONMAN triathlon in Panama City Beach on November 7, 2026, with an ocean swim and flat bike and run courses along the Emerald Coast.
Rocktown Adventure Race at Massanutten Resort in the Shenandoah Valley offers 5 hour and 30 hour adventure courses with mountain biking, trekking, ropes and paddle elements. Races finish at Basecamp with food and awards.
A campus reverse sprint triathlon and 5K trot with a 300 yd swim, 10 km bike, 5 km run, awards, raffle, and a pantry drive at Weber State.