United States
- Alabama 14
- Alaska 11
- Arizona 17
- Arkansas 6
- California 63
- Colorado 21
- Connecticut 22
- Delaware 3
- District of Columbia
- Florida 43
- Georgia 16
- Hawaii 3
- Idaho 16
- Illinois 29
- Indiana 31
- Iowa 22
- Kansas 7
- Kentucky 13
- Louisiana 9
- Maine 10
- Maryland 16
- Massachusetts 26
- Michigan 38
- Minnesota 27
- Mississippi 5
- Missouri 10
- Montana 11
- Nebraska 5
- Nevada 2
- New Hampshire 4
- New Jersey 28
- New Mexico 8
- New York 70
- North Carolina 33
- North Dakota 1
- Ohio 23
- Oklahoma 8
- Oregon 10
- Pennsylvania 28
- Puerto Rico 1
- Rhode Island 3
- South Carolina 15
- South Dakota 4
- Tennessee 22
- Texas 55
- Utah 15
- Vermont 3
- Virginia 35
- Washington 26
- 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 921 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
May 2026
A sprint triathlon and a concurrent sprint duathlon in Ridgefield Connecticut on May 31, 2026 featuring a half mile swim or 2 mile run, a 13 mile bike ride, and a 5K run, with individual and relay entry options.
Women's Whisper Triathlon in East Meadow features pool swims, closed road bike courses and park runs across adult, school and youth divisions, with relay and virtual options available.
A Nashville triathlon featuring a swim from the General Jackson into the Cumberland River, a bike on closed Ellington Parkway, and a finish by Nissan Stadium. Race formats include sprint, Olympic, relays and a virtual option.
A swimrun event on May 31, 2026 at Rosario Resort in Eastsound, WA with World Series, Sprint and Experience categories for solo athletes and teams. Registration runs from October 31, 2025 to December 1, 2025.
A swimrun on Orcas Island, Washington on May 31, 2026 offering three distances that mix lake swims and forest trail runs. Mandatory safety gear and a day-before packet pickup at Rosario Resort Beach House are part of the event.
A multisport event at Medical Lake Waterfront Park offering swim, bike and run options with Super Sprint and Sprint distances plus 2 and 3 person relays; entries include a technical event T shirt, finisher medal and pasta feed.
A multisport weekend at Blue Lake Regional Park in Fairview Oregon featuring Super Sprint, Sprint and Olympic triathlons, duathlon, aquabike, a 5K and a paddle triathlon, plus an expo, post-race food and awards.
A multisport festival at Caesar Creek State Park on May 31, 2026 featuring triathlons, duathlons, aquabikes, aquathlons, open swims and runs across beginner to 1/3 iron distances.
A multi-event day at Uvas Reservoir on May 31, 2026 featuring a sprint-length triathlon with a .75 mile swim, about 16 miles of bike and a 5 mile run. Additional options include AquaBike, Duathlon, Aquathlon, open-water swim and a kids fun run.
Open water swims and a combined Swim + Run at Lake Gardner in Amesbury, MA on May 31, 2026, with multiple swim distances and about 200 participants.
SwimRun Knox on May 31, 2026 features a 12.25 mile swimrun at Mead's Quarry and Ijams Nature Center plus a 3.18 mile trail 5k and a 13.1 mile trail half marathon, with team and individual entry options.
A short-distance triathlon at Cedar Beach in Southold, NY, with a calm Peconic Bay swim, a mostly flat 7 mile bike, and a 3.5 mile run; categories include individual, relay, aquabike, bike run, and high school divisions.
A multi sport triathlon weekend at Boulder Reservoir with long course, Olympic, sprint, aquabike, duathlon and relay options, produced by BBSC Endurance Sports with a stated focus on athlete safety.
June 2026
A three-race Super Sprint triathlon series in Cassadaga, NY featuring 400 m swim, 13 mile bike and 2 mile run. Individual, AquaBike for individuals, and relay team options are offered, with season points and awards through fifth place.
A community aquathlon at Stevens Creek Reservoir with swim run formats for adults and youth, plus separate swim and 5k run options. Timing chips are used and no race day registration is available.
A three-day fitness festival in Corpus Christi (June 5–7, 2026) featuring runs, a track mile, multiple cycling routes, local vendors, live music, and family activities.
Youth Splash and Dash in Hudson, Illinois for ages 7 to 15 as part of the USA Triathlon series, with pond swims followed by short runs and a focus on participation rather than timed results.
Princeton Triathlon in Princeton, NJ offers multiple triathlon and multisport races across June 5 and 6, 2026, plus a youth clinic. Events include youth distances and adult sprint formats with age group and overall awards.
An adventure race in Packwood WA with 36 hour and 12 hour divisions featuring scrambling, single track mountain biking and class 2 white water. Organized by Bend Racing and CrossFit Fort Vancouver, it is a USARA and AR World Series regional event.
A run-bike-run duathlon at ADTRAN in Huntsville on June 6, 2026, featuring a 3.1 mile run, an approximately 11 mile three loop bike, and a 2 mile run, with individual and relay entry options and set registration dates and fees.