Selected US triathlon events scheduled for October–December 2026 are listed below. This is not a complete US race calendar. Information last checked: October 4, 2026. Dates and registration availability may change.

October 10: IRONMAN World Championship — Kona, Hawaii. Entry is by qualification, not general open registration.
Official race directory: https://www.ironman.com/races

October 10: Las Vegas Tri — Boulder City, Nevada. Listed in USA Triathlon's 2026 State Championships schedule. Current registration availability and specific race distances have not been verified.

October 11: Mission Bay Triathlon — San Diego, California. Listed in USA Triathlon's 2026 State Championships schedule. Current registration availability and specific race distances have not been verified.
Official schedule for these two events: https://www.usatriathlon.org/get-racing/state-championships

October 17: IRONMAN 70.3 North Carolina — Wilmington, North Carolina. The official page showed registration sold out when checked.
https://www.ironman.com/races/im703-north-carolina

November 7: IRONMAN Florida — Panama City Beach, Florida. The official page showed registration sold out when checked.
https://www.ironman.com/races/im-florida

December 6: IRONMAN 70.3 La Quinta — La Quinta, California. The official page showed registration sold out when checked.
https://www.ironman.com/races/im703-indian-wells

Before making travel plans or attempting to register, check the organiser's official website for the current date, available entries, eligibility requirements, race distances, and rules. A scheduled race is not necessarily open for registration. If you are looking for a race, tell us your preferred state, distance, and travel dates. We cannot confirm live availability from this dated list.

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