United States
- Alabama 10
- Alaska 4
- Arizona 15
- Arkansas 2
- California 62
- Colorado 16
- Connecticut 4
- Delaware 2
- District of Columbia 1
- Florida 40
- Georgia 8
- Hawaii 4
- Idaho 8
- Illinois 19
- Indiana 12
- Iowa 11
- Kansas 2
- Kentucky 6
- Louisiana 5
- Maine 3
- Maryland 14
- Massachusetts 13
- Michigan 19
- Minnesota 9
- Mississippi 5
- Missouri 8
- Montana 4
- Nebraska 4
- Nevada 3
- New Hampshire 3
- New Jersey 10
- New Mexico 4
- New York 55
- North Carolina 24
- North Dakota
- Ohio 13
- Oklahoma 6
- Oregon 5
- Pennsylvania 17
- Puerto Rico 1
- Rhode Island 2
- South Carolina 8
- South Dakota 1
- Tennessee 12
- Texas 49
- Utah 14
- Vermont 2
- Virginia 30
- Washington 10
- West Virginia 2
- Wisconsin 26
- 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 605 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
An annual multisport event at Mission Bay and Fiesta Island, the 2026 XTERRA Wetsuits Mission Bay Triathlon hosts USA Triathlon State Championships and offers triathlon, duathlon, aquabike, aquathlon, youth races, and a 5K, produced for Life Sports F..
Sprint triathlon at Lake Walk in Bryan/College Station on October 11, 2026, with individual and relay divisions benefiting the First Win nonprofit.
Mudskipper US SoCal Silverwood takes place in Hesperia California on October 11 2026 and features open water swim and swimrun races presented by Canaqua Sports. It is the first Mudskipper event on the US west coast.
Sprint triathlon at Landa Park Aquatic Center in New Braunfels with a 300 m swim, 12 mile bike and 2.5 mile run plus relays and duathlon options.
Annual triathlon in Davis hosted by UC Davis Triathlon Club with sprint, relay, and mixed team relay options at Schaal Aquatics Center.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
A mountain bike duathlon in Montauk on October 11, 2026 offering individual, bike only and two person team formats with proceeds supporting a community pool project.
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.
IRONMAN 70.3 North Carolina in Wilmington offers a beach swim, a flat bike through nearby countryside and a run finishing by the Battleship North Carolina.
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 team event at Montauk Brewing Company on October 17, 2026 combining running, rowing and cycling with proceeds supporting OMAC.
Community walk/run and Teal Pumpkin festival in Peoria Heights promoting food allergy awareness with in-person and virtual options.
Women's Collegiate Triathlon East Regional Championship at Lanier Islands on 10/17/2026 is a draft legal race featuring a 750 m swim, 20 km bike and 5 km run.
Two-day off road multi sport festival near Navasota TX featuring triathlon, duathlon, adventure race, aquabike, relays and kids tri distances.
A self-supported Pedal Peak Paddle event of about 32 miles through Saranac Lake Wild Forest, open to solo racers and teams.
IRONMAN California in Sacramento features a downriver 2.4 mile swim, a flat 112 mile bike through farmland and a 26.2 mile run finishing at the 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.