Key West Triathlon

Key West Triathlon takes place at Higgs Beach in Key West, Florida, on Sunday, December 14, 2025. The event offers multiple formats: International Triathlon (0.6-mile swim, 22-mile bike, 6-mile run), Long Sprint Triathlon (0.4/12/4), Short Sprint Triathlon (0.2/7/2), Duathlon (0.55-mile run, 12-mile bike, 4-mile run), Aquabike (0.4-mile swim, 12-mile bike), and Mini Triathlon. Athletes converge on the southernmost island in the United States, with friends, family and music cheering them at the finish.

The Mack Cycle Key West Triathlon is proudly brought to you by Integrity Multisport, emphasizing “Race with Integrity.” A vacation-friendly event that blends sport with Key West’s festive atmosphere. Visit the organization's website for the most recent information.