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 51
- 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 654 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
August 2026
Ocean swimrun across Casco Bay islands near Portland, Maine, offered in three distances with ferry starts, mandatory wetsuits, and enforced safety cut-offs.
OTILLO Swimrun Casco Bay Islands is a swimrun event in Long Island, Maine on August 9, 2026, offering World Series, Sprint and Experience categories for solo and team entrants plus spectator boat tickets for adults and children.
All-women’s triathlon and fitness festival on August 9, 2026 at Frenchmans Bar in Vancouver, WA, featuring sprint triathlon, duathlon, aqua-bike, a 5 km run, and a kids triathlon; event benefits the Northwest Association for Blind Athletes.
A multisport event in Santa Cruz on August 9, 2026 featuring international and sprint triathlons, aquabike, aquathlon, duathlon, open swims and a 5 km run, plus relay teams, special category rules and participant awards.
Sharon Triathlon on 08/09/2026 in Sharon, MA offers individual, relay and AquaBike formats with a half mile swim, a roughly 12.4 mile bike time trial and a 4.4 mile lakeside run, followed by a post-race BBQ.
A memorial triathlon and duathlon at Midland Beach featuring a calm 400 m swim, a closed flat 12-mile bike course on Father Capodanno Blvd, and a 3-mile boardwalk run, plus relay and aquabike options.
A women's multisport event on August 9, 2026, in Pleasant Prairie, WI offering sprint triathlon, duathlon, relay and para sprint options. Registration runs November 17 to December 1, 2025, with fees from $95 to $190.
A triathlon and duathlon at Rancho Seco Park featuring a lake swim, road bike course, and dirt trail run, with age-group and overall awards, finisher items, and on-site camping at the venue.
Four-race sprint triathlon at James Island County Park featuring a 600-yard swim, 12-mile bike and 5K run; registration closes the Wednesday before each race.
Mountain triathlon in Hendersonville NC with a 600 meter open water swim, 13.5 mile mixed surface bike and 5K trail run, including an E Bike division and a virtual option.
12th Annual Lititz recCenter Sprint Triathlon in Lititz, PA on August 9, 2026, with individual and team entry categories and published entry fees.
Family-focused gravel triathlon at Boulder Reservoir with Sprint, Super Sprint, Mini and SSS options for adults and children.
Camp Blanding hosts Olympic and sprint triathlon races plus aquabike and a sprint duathlon, with swims in Kingsley Lake, bike loops on base, and out-and-back runs with aid stations.
A USAT sanctioned Super Sprint triathlon at Kenneth L. Wilson State Park near Woodstock NY, featuring a 400 m swim, 12 mile bike and 2 mile run. An AquaBike option is available for individuals and series points determine season standings.
Open-water swims and trail runs at Stevens Creek Reservoir and Stevens Creek Canyon, including an adult aquathon and a youth Splash and Dash for ages 11 to 15. Timing chips are used and spectators are welcome.
Waupaca Area Triathlon is a multi format weekend at Shadow Lake and downtown Waupaca on August 14 to 15, 2026. Events include swim bike run races, paddling options, youth and kids races, and relay entries.
South Fork Pandemonium is an Amazing Race style, two day competition in South Fork, Colorado on August 14 and 15, 2026. Family and four person team races include surprises like rail biking, rock climbing, river floating, puzzles, and cash prizes.
A sprint triathlon at Fremont Lake Park on August 15, 2026, featuring a 750 m swim, 12.4 mile bike, and 5K run, with a relay option and a 150 participant limit.
A community multisport event in Chesaning with a 15.85-mile bike-run-paddle Dry-Tri and a 5K run/walk, staged from Showboat Park with kayak drop-off at Parshallburg Park.