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!
September 2026
Experience a diverse multisport event at Atsion Lake featuring triathlons, duathlons, and aquabikes. Enjoy a fresh water swim, a flat bike course on country roads, and trail running through the Pine Barrens woods.
Downtown Moline adventure triathlon with a 2.5 mile paddle, 7.5 mile bike and 2 mile run over the I 74 Bridge plus individual, team and corporate divisions.
Sprint triathlon and duathlon in Moscow, Idaho featuring a 500 yard pool swim, a 9.3 mile bike out and back, and a 5K run with one hill.
A USAT sanctioned sprint triathlon at Madison Town Beach featuring a half-mile swim, 13-mile bike and 3-mile run, plus aquabike, youth, relay and parathlete divisions. Field limited to 500 and USAT membership is required.
A self supported adventure triathlon in Iola, WI featuring a 2 mile trail run, 7 mile gravel bike ride, and 2 mile paddle for individuals or 3 person relays.
TORC in downtown Oklahoma City offers sprint, adventure, aquabike and duathlon distances on September 12, 2026, using the Riversport pool, downtown bike laps, and the Oklahoma River trail.
Charity swim-run in East Meadow at the Eisenhower Aquatic Center offering 1500 m and 400 m swim options plus a 5.1 km run, with team and donation choices.
A nonprofit fundraiser in Chippewa Falls featuring a triathlon with run bike and paddle legs, two 5K options, and a children’s one mile loop, with kayak and canoe rentals available first come first served.
A sprint triathlon at V3 Sports in Minneapolis on September 12, 2026, with a one third mile pool swim, a 15 mile out and back bike on local trails, and a 5K neighborhood run. Individual and team entries are offered.
Sprint triathlon at Sleepy Hollow Lake with a 350 yard swim, 11.5 mile bike and 5K run, chip timing, participant items and multiple award categories.
Community fundraiser in Chantilly featuring a 5K run/walk, an aquathlon (pool swim plus 5K run), and an afternoon dog swim at Pleasant Valley Pool.
A YMCA triathlon in Huntsville, Alabama on September 12, 2026 with individual, family and team entries. Race distances are a 300 yard swim, an 8 mile bike and a 5 km run; fees and registration windows differ by entry type.
A day event in Lotus, CA combining a supported group trail run along the South Fork American River with a guided whitewater raft trip and included gear.
Mini triathlon at El Salido Pool in Austin with a 300 meter swim, 1.5 mile bike and 1 mile run; individual or 2 to 3 person relay.
A multisport event at Wenonah Lake with triathlon, duathlon, aquabike, and relay options featuring a cedar lake swim, a 12 mile bike route, and town street runs. USAT sanctioned and part of the DQ Events series.
A sprint triathlon in Lake Orion with an open water swim, 12.4 mile mixed-terrain bike and a 5K trail run on September 13, 2026. Registration opens October 21, 2025 and entries are capped at 100 participants.
A short-course triathlon in Knoxville on September 13, 2026, featuring a 100 yard swim, about a 5.3 mile bike and a 4 km run, with individual and two or three person relay divisions and multiple age and weight classes.
Lake-based triathlon in Fort Worth offering sprint and super sprint distances with chip timing and USA Triathlon sanction.
Multi-sport event at Sandy Creek Park in Athens offering sprint distance swim bike run, aquabike, and duathlon formats on September 13 2026. A sprint relay option allows teams of two or three.
A multi-format triathlon at Foster Memorial Town Beach in Sag Harbor on September 13, 2026, featuring an Olympic course with a 1.5K swim, 23.8 mile bike and 10K run, plus Super Sprint, Aquabike, relay and BikeRun options.