United States
- Alabama 13
- Alaska 11
- Arizona 19
- 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 55
- 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 894 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
IRONMAN 70.3 Augusta is a half distance triathlon in Augusta, Georgia on September 27, 2026. It features a downriver swim in the Savannah River, a 56 mile bike through rural Augusta, and a flat 13.1 mile run on the North Augusta Greeneway trail.
Tri to Inspire is a short distance triathlon in Santa Rosa on 09/27/2026 featuring pool swims followed by bike and run courses. It offers sprint, mini sprint, relay and family divisions, with proceeds supporting the Inspiration Sports Foundation.
A multisport event at Far Rockaway featuring ocean swims and boardwalk bike and run legs, with triathlon, duathlon, beginner, and junior formats on September 27, 2026.
A one day triathlon in South Padre Island on September 27, 2026 offering sprint and Olympic distances plus a sprint relay. Fees range from $95 to $145 and registration runs from October 31, 2025 to May 31, 2026.
Multi-distance triathlon at Prairie Creek Reservoir Park with Sprint and Olympic options, USAT sanctioned and chip timed. Lake swim, rolling hills on bike and run, finishers receive a shirt and medal.
A championship swimrun and open-water swim day at Deam Lake on September 27, 2026, featuring a 12.5-mile swimrun plus 3, 6, and 9 mile open-water swim distances as part of the Mudskipper Championship Series.
A sprint triathlon on the University of Illinois campus with a 300 meter pool swim in the ARC outdoor 50 meter pool, a 14 mile bike on a flat course, and a 5k run. Packet pickup occurs the day before and on race morning.
Single day multi-format races at UW-Whitewater featuring triathlon, duathlon and aquabike distances. Online only registration, relay options, a new youth supersprint award and limited Olympic entries.
October 2026
A weekend multi-sport event in Yellow River State Forest combining trail running, catch-and-release fly fishing, and craft beer. Organized by Running Rivers, proceeds support habitat improvement and promote responsible outdoor recreation.
A USA Triathlon sanctioned multisport event at Lake Pleasant featuring Olympic and sprint triathlon, duathlon, aquabike and kayak SUP divisions. Distances range from 750 m swims to 1500 m and bike legs to 40 km; chip timed with finisher medals.
On October 3, 2026 the Wild Driftless Adventure Race runs in Elkader, Iowa. Teams or solo racers navigate a secret course by map and compass with trekking, biking and paddling options across two timed race formats.
Sandling Beach Triathlon Festival is on October 3, 2026 at Sandling Beach State Recreation Area in Wake Forest, NC. It hosts Sprint and International races as the Final Round of the 2026 North Carolina Triathlon Series with Individual, Relay and Aqua..
A multi-sport event in Eaton Rapids combining a 2 km kayak, 15 mile bike, and 5 km run that ends with a colored powder finish. Options include individual triathlon, three-person relays, and a 5K-only entry.
A one day multi sport meeting at Mitchell Park Guthrie Lake featuring sprint triathlon, super sprint, duathlon, aquabike, and a free Youth Under 12 option. The swim uses a protected cove and courses are looped for spectator access.
A two day triathlon festival in Rock Hall, Maryland featuring half, Olympic and sprint distances with triathlon, aquabike and relay options. Swim in Rock Hall Harbor and ride and run on largely flat to rolling rural roads.
A multi-format event at Lake Murray Dam featuring a 1000 meter lake swim, a 21 mile bike course that crosses the dam, and a 6 kilometer run along the dam. Registration opens November 1 2025 and deadlines vary by race.
A point to point triathlon in eastern Valley County Idaho from Warm Lake to Yellow Pine via a 7300 foot summit. Multiple divisions include able bodied, adaptive, and relay formats with awards and an after party in Yellow Pine.
A full day of multisport racing at Lake Brandt Marina in Greensboro on October 3, 2026. Morning features an on road triathlon and a duathlon, afternoon an off road triathlon, with a Double Trouble Award for competing in both.
A two day triathlon festival at the Hammerman Area of Gunpowder State Park in Chase, MD. It features women's and men's sprint triathlons, aquabike and duathlon options, team relays and a youth race for ages 6 to 15.