The American triathlon calendar runs from late spring through to December, with the heaviest concentration of races falling in July and August. Cities such as Lake Placid, Boise, Augusta, Louisville, Sandusky and Portland each host events during the summer peak, covering a spread of distances and formats — from the full IRONMAN distance to the 70.3 middle distance and off-road XTERRA events. SportsPal brings major race series — IRONMAN, XTERRA and others — together with independent local races in a single filterable calendar, so you can compare events across months and cities without visiting each organiser's site separately. Use the filters below to narrow by date, distance or location and plan your season around the races that suit you.
Madison, WI, United States
Santa Cruz, CA, USA
Madison, WI, United States
Cambridge, MD, United States
Richland, WA, United States
Frankfort, MI, United States
Jones Beach, NY, United States
Augusta, GA, United States
Chattanooga, TN, United States
Waco, TX, United States
Kona, HI, United States
Wilmington, NC, United States
SportsPal lists 34 upcoming triathlon events in the United States, scheduled across September 2026, October 2026, November 2026, December 2026, March 2027 and April 2027. Each listing includes the date, venue and distances — and, where available, course conditions and water temperatures — with a direct link to register.
SportsPal currently lists 34 upcoming triathlon events in the United States, including events in Madison, Santa Cruz, Cambridge and Richland. New events are added as organisers publish them.
The next event is IRONMAN 70.3 Wisconsin 2026 on 12 September 2026 in Madison. Open its page for the full schedule, distances and registration details.
Upcoming events are scheduled across September 2026, October 2026, November 2026, December 2026, March 2027 and April 2027. Browse the list above for exact dates.
Open any event above to see its date, location, distances and course conditions, then follow the registration link to sign up directly with the organiser.
