United States
-
Alabama9
-
Alaska7
-
Arizona10
-
Arkansas2
-
California38
-
Colorado8
-
Connecticut3
-
Delaware3
-
District of Columbia
-
Florida46
-
Georgia13
-
Hawaii1
-
Idaho9
-
Illinois15
-
Indiana21
-
Iowa8
-
Kansas5
-
Kentucky9
-
Louisiana3
-
Maine7
-
Maryland11
-
Massachusetts17
-
Michigan27
-
Minnesota16
-
Mississippi3
-
Missouri14
-
Montana3
-
Nebraska3
-
Nevada
-
New Hampshire
-
New Jersey23
-
New Mexico3
-
New York51
-
North Carolina30
-
North Dakota
-
Ohio12
-
Oklahoma6
-
Oregon9
-
Pennsylvania16
-
Puerto Rico
-
Rhode Island1
-
South Carolina14
-
South Dakota
-
Tennessee22
-
Texas44
-
Utah15
-
Vermont
-
Virginia33
-
Washington13
-
West Virginia5
-
Wisconsin24
-
Wyoming2
Triathlon Calendar United States 2025-2026
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 2025-2026! Our updated list features 632 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
Celebrate Mother's Day weekend at AdventHealth Girlz on Fire Women's Triathlon & 5K in Clermont, FL. Options include sprint tri, 5K, relays, duathlon, aquabike, aquathlon and virtual race for an empowering day.
Take on the Spirit of Kona at Tellico Dam Recreation Area in Lenoir City on May 9, 2026. Choose sprint or Olympic triathlons, aquabikes, aquathlons, relays or standalone 5k and 10k runs on scenic lake and dam side courses.
Join the Kinetic Triathlon Festival at Lake Anna State Park on May 9 and 10, 2026 for a weekend of half, Olympic and sprint races set from a sandy beach and rolling country roads. Banked stadium seating overlooks the swim and finish while time trial..
Challenge yourself at the scenic Folsom Lake International Triathlon at Granite Beach with Olympic distance and Aquabike options, capped at 300 athletes. Enjoy custom TBF socks, a swim cap, a finisher hat, post race refreshments and age group awards.
Join the Gator Grinder Triathlon in Canby OR on May 9, 2026, with a 500 yard pool swim, 12 mile bike and 3.1 mile run through scenic roads and trail. Multiple formats including aquabike and duathlon support the Canby Gators Swim Club.
Race the Pioneer Spirit Triathlon in Petersburg, IL, May 9 to 16, 2026, with heated indoor pool swims, bike and run legs plus a 5k offered on site or virtually. Fun and welcoming for first timers and seasoned racers alike.
Return to Shelby Farms Park for the Memphis In May Triathlon Weekend featuring Olympic and Sprint events plus aquabike and relay options on scenic lake, road and trail courses. Enjoy a custom 2026 shirt, finishers medal and post race lunch.
Kick off triathlon season at the Splash N Sprint Triathlon in Bountiful, Utah on May 9 and 10, 2026 at the South Davis Recreation Center. Sprint, novice and relay options welcome all ages and abilities, with a free beginner clinic and group ride to p..
Race the Cedar River Triathlon at Lake Wilderness in Maple Valley, WA on May 10, 2026 in a scenic super sprint swim bike run with wetsuits welcome. Finishers earn a Cedar River medallion and a kids Splash n Dash brings family fun.
Celebrate Mother's Day at the Mighty Mother's Day Duathlon in East Islip, a 20 year tradition featuring duathlon, relays and youth races. The adult course has a flat 10.5 mile bike loop and short grass and dirt runs.
JerseyMan Triathlon at Round Valley in Lebanon New Jersey offers long and short courses plus Elite AquaBike and Duathlon options. Swim, bike and run scenic reservoir roads and trails for competition or a personal challenge.
Kick off multisport season at the Dooby Du Duathlon in Sylvania with gravel trail runs and a scenic 13.5 mile two loop bike on rural roads. Open to athletes 15 and older, this RunToledo tune up has limited spots.
XTERRA North American Championship at Oak Mountain State Park in Pelham, Alabama from May 15 to 17, 2026. Off road triathlon racing, a World Cup stop, youth championships and a festival with live music, food trucks and beer gardens.
Take on the Root River Triathlon in Bluff Country on May 16, 2026, a unique non swimming race set along the scenic Root River Valley. Paddle solo or team up for kayak, canoe and multi person relay fun for all ages.
Join Utah's first women only triathlon and 5K in American Fork on May 16, featuring a pool swim, scenic bike course and a lively 5K finish. Celebrate with finisher medals, boutique vendors, raffle prizes and a festive post race party.
She Tris at I'On Club in Mount Pleasant is an all women multisport event offering triathlon, duathlon, aquathlon, relays and virtual options. Enjoy training and clinics, a pool swim, scenic bike and run routes, and a finish line party.
Kids from North Penn elementary schools take on the 13th annual IRONKnights Triathlon in Lansdale on May 16, 2026, with a rain date of May 17. Young athletes 4 to 14 will swim, bike and run for trophies and an IRONKnight tee.
Mighty Moraine Spring Multi Sport Festival hits Moraine State Park May 16 and 17, 2026 with Olympic, sprint, super sprint and youth triathlon and aqua bike races for solo racers and relays. Add a Mighty Double bundle for both days.
Push your limits at the New River Rush Adventure Race, a 15 hour team or solo challenge through New River Gorge with guided whitewater, mountain biking, single track trails and orienteering. USARA sanctioned with a redesigned course for 2026.
Kick off the season at the inaugural Fall Creek Falls Spring Sprint Triathlon in Spencer TN, with a 500 meter swim, 14 mile bike and 5 km run through scenic state park vistas. Individual, relay and aquabike options welcome.