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!
October 2026
A point-to-point swim-run through the Cape Cod National Seashore on October 3, 2026, offering three distances. Competitors may race solo or as two-person teams; the event is part of the My SwimRun Championship Series.
A USAT sanctioned sprint triathlon at Pensacola Beach featuring a 550 meter swim, a 21 kilometer out and back bike and a 5 kilometer run. Multiple divisions include aquabike, age and weight categories, and two- and three-person relays.
A sprint triathlon in Alamosa, Colorado on October 3, 2026 featuring a 400-yard swim, 10-mile bike and 5k run. Individual and 2- or 3-person team entries, age-group awards and finishers' medals.
A draft legal sprint triathlon for NCAA collegiate women at Clinton Lake SRA featuring a 750 m swim, 12 mile bike and 3.2 mile run, organized in two waves with segment time limits.
An off-road paddle run bike triathlon at Northfield Mountain featuring mass start paddles on the Connecticut River, trail running and single track mountain biking, with chip timing and staffed transitions.
ÖTILLÖ Colorado USA pairs open water swims at Horsetooth Reservoir with trail runs in Lory State Park at over 5,000 feet. Three distances are available from a 6 mile experience to a 23.5 mile World Series.
A USAT-sanctioned multisport event at Marine Creek Public Boat Ramp in Fort Worth on 10 October 2026. Features sprint and Olympic triathlons, a duathlon, relay teams, collegiate races and a virtual option with mailed shirt and medal.
IRONMAN 70.3 Waco is a half distance triathlon in Waco, Texas on October 4, 2026. The course features a Brazos River swim, a flat bike through rural Texas and a rolling run finishing at the historic Waco Suspension Bridge.
A triathlon festival in Montauk offering sprint and Olympic races plus aquabike and relays, with a 750 meters swim in Fort Pond, a 17 km bike loop, and a 5 km run.
A short course triathlon at the Mattoon Area Family YMCA featuring a 275 yard pool swim, a 12 mile bike and a 3.1 mile run. Helmets are required and headphones are not allowed on the bike.
HoosierMan Triathlon on October 4, 2026 at Lake Lemon near Bloomington, Indiana offers sprint and Olympic triathlons, a sprint duathlon, aquabike options and team relays. The USAT sanctioned, chip timed event features a lake swim, rolling bike course..
A youth triathlon on Pensacola Beach with a Gulf of America swim and bike and run courses on closed Highway 399. Three age based distances for ages 6 to 15 include a physically challenged division; finisher medals and age group awards.
A multi-loop ultra triathlon at Lake Anna State Park October 8-10 offering Single, 1.5x and Double distances with looped swim, bike, and run courses, on-site aid, regulated safety measures, and online-only registration.
Pleasants Landing Triathlon at Lake Anna in Bumpass, VA offers Olympic and Sprint triathlons and aquabike races with spectator-friendly swim courses, rolling bike loops around the lake, and a variety of race categories in October.
A fall run, bike, run duathlon at Cedar Creek Park in Seaford, NY, featuring 1.1 mile runs and 11 miles of closed-road cycling. Individual, relay, family and virtual options are available with specific family relay rules.
Fall Foliage Adventure Race in Jamestown, Virginia offers five hour and twenty four hour orienteering events that combine paddling, biking and trekking across parks and historic sites. Solo and team categories are available and spectators may attend..
A multisport event at TVA Melton Hill Dam on 10/10/2026 with Half Iron, Olympic and Sprint triathlons, a duathlon and relay options. Swim, bike and run courses circle the dam with on-site parking and campground nearby.
A run-bike-run duathlon at Redstone Arsenal where finish times are compared to the International Space Station's 91 minute 12 second orbit; individual and relay entries have specified registration windows and base access requirements.
A USA Triathlon sanctioned sprint event in Oloh, Mississippi on October 10, 2026 offering swim, a 21.3 mile bike and a 3 mile run with divisions for beginners, duathlon and relays; helmets and photo ID are required.
An Olympic-distance multisport event in New Roads, LA featuring a 1.5K swim, 40K bike and 10K run with aquabike, duathlon and relay divisions, limited to 300 entries and finishing with awards and a finish fest.