United States
- Alabama 13
- Alaska 11
- Arizona 20
- Arkansas 5
- California 61
- Colorado 21
- Connecticut 21
- Delaware 3
- District of Columbia
- Florida 47
- Georgia 16
- Hawaii 3
- Idaho 15
- Illinois 26
- Indiana 26
- Iowa 22
- Kansas 7
- Kentucky 13
- Louisiana 8
- Maine 11
- Maryland 17
- Massachusetts 21
- Michigan 35
- Minnesota 26
- Mississippi 5
- Missouri 9
- Montana 10
- Nebraska 4
- Nevada 2
- New Hampshire 4
- New Jersey 28
- New Mexico 7
- New York 66
- North Carolina 35
- North Dakota 1
- Ohio 23
- Oklahoma 8
- Oregon 8
- Pennsylvania 29
- Puerto Rico 2
- Rhode Island 3
- South Carolina 15
- South Dakota 3
- Tennessee 20
- Texas 56
- Utah 15
- Vermont 3
- Virginia 38
- Washington 22
- West Virginia 6
- Wisconsin 32
- Wyoming 4
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 896 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
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.
An all-women triathlon festival at Frenchmans Bar near the Columbia River featuring sprint triathlon, duathlon, aquabike, a 5 km run and a Kids Triathlon, with USAT rules, chip timing and awards across age and division categories.
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 sprint triathlon around Niantic Bay and East Lyme featuring a calm 1/2 mile swim, an 11.4 mile bike loop, and a 3.2 mile oceanfront run with a beach finish. Team relay and aquabike options are available.
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.
A triathlon in Charleston, SC on 08/09/2026 listed at 15.475 Miles, with registration shown as free and briefly open on 12/28/2025.
A mountain triathlon in Hendersonville, NC featuring a 600 m open-water swim, 13.5-mile mixed-surface bike, and a 5K trail run, with chip timing, age-group awards, an E-Bike Division, and a weekend challenge option.
The 12th Annual Lititz recCenter Triathlon takes place in Lititz, Pennsylvania on August 9, 2026. It is a sprint triathlon with individual and team entry categories and published entry fees.
Join this multi sport festival at Boulder Reservoir featuring gravel triathlons and aquabike races. With distances ranging from Super Sprint to relay options there are accessible events for individual athletes and the whole family.
Hammerhead Olympic & Sprint Triathlon in Starke, Florida features sprint and Olympic triathlon distances plus aquabike, duathlon, and relay options, with freshwater swims at Kingsley Lake and bike loops on Camp Blanding roads.
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 on 08/13/2026. Adult and youth aquathons run alongside standalone swim and 5k options.
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.
A sprint triathlon at Fremont Lake Park on August 15, 2026, featuring a 750 m swim, 12.4 mile bike and 5K run. Individual and relay entries are available, the field is limited to 150 participants, and specific swim and helmet rules apply.
A community event in Chesaning on August 15, 2026 featuring a 15.85 mile dry tri with bike, run, and kayak or canoe segments plus a separate 3.1 mile 5K. Registration runs January 1 to May 31 with listed fees for each event.
Triathlon day at Fall Creek Falls State Park on August 15, 2026 offering Half Iron, Olympic and Calfkiller Sprint distances with lake swims, bike courses and wooded trail runs; USAT sanctioned and insurance available.