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 USAT sanctioned sprint triathlon at Landa Park Aquatic Center in New Braunfels. The event features a 300 m swim, 12 mile bike and 2.5 mile run, relay and duathlon options, awards and a post race party with Kiolbassa Sausage.
A one-day triathlon at Schaal Aquatics Center in Davis, CA offering classic sprint and relay formats on October 11, 2026. Organized by the UC Davis Triathlon Club, events include individual and team options with varied distances and fees.
A mountain bike duathlon in Montauk on October 11, 2026 featuring a 1.6 mile run, an 11.5 mile bike and a second 1.6 mile run. Options include bike only and two person team entries, with hoodies and post race amenities.
A two day multisport festival in Clermont, Florida featuring a Triple Triathlon of three consecutive Sprint triathlons. The weekend also includes sprint events, relays, a 15K and 5K on the South Lake Trail, and a virtual option.
Beach Girl Triathlon in Galveston on October 17, 2026 features a Super Sprint course with a 200 meter pool swim, 8 mile bike and 2 mile beach run, plus duathlon and aquabike options and an after party.
Sprint multisport events at Matapeake Beach in Stevensville, MD on October 17, 2026, including triathlon, duathlon, aquabike and relay formats with a 0.5 mile swim, a 12 mile bike out and back on Route 8, and a 3.1 mile run.
A community 5K and family Teal Pumpkin Festival in Peoria Heights promoting food allergy awareness with in-person and virtual race options and allergy-friendly activities.
Lanier Islands hosts the Women's Collegiate Triathlon East Regional Championship on October 17, 2026, with collegiate and Premium Cup races plus an open draft legal wave over sprint triathlon distances.
Two days of multi sport racing in Navasota, Texas with lake swims, jeep road and trail bike sections, and dirt road runs. Options include an adventure race, sprint triathlon, duathlon, aquabike, relays, and kids triathlons.
IRONMAN California in Sacramento features a 2.4 mile downriver swim, a fast 112 mile bike and a 26.2 mile run finishing at the California State Capitol.
A trail Run, Bike, Run at Lake Hodges near San Diego combining a 10k run, a 22k bike and a 5k run. Entries are available for individuals or teams; the event is cupless so participants should bring a personal hydration vessel.
USAT sanctioned sprint multisport races at Lake Worth Beach Park featuring swim, bike, run and relay formats. Courses include a 13 mile bike with a bridge and run sections along the Intracoastal and Snook Island preserve.
Lake Evans Triathlon on 10/18/2026 in Bakersfield features multiple on-site and virtual race formats from 5K runs to longer multisport courses, with finisher medals, event shirts, a meal, music and a team competition.
Cal Tri LA at Dockweiler State Beach in Playa Del Rey offers 18 event options on October 18, 2026, across Olympic, Sprint, and Youth Sprint formats, including triathlon, duathlon, aqua bike, swim run, and standalone swim and run distances.
Experience a scenic two mile run, twelve mile bike, and final two mile run along the Mohawk Towpath Byway. Compete individually or as a relay team at the historic Riverview Orchards in Rexford.
A USA Triathlon sanctioned youth triathlon at the Citrus Memorial Health Foundation YMCA with Junior and Senior courses plus a non-timed Tri4Fun option for families and adults.
Collegiate women will compete in a draft legal sprint distance triathlon at the NCAA West Regional Championship in Fort Worth on October 18, 2026. Registration runs June 14 to October 12 and the fee is $150.
A 30 hour continuous adventure race at Diamond Lake Resort, Oregon on October 23-24, 2026. Four-person teams compete in mixed, all-women, and all-men categories across trekking, mountain biking, paddling, and navigation with live tracking.