The World Thai Boxing Association (formerly the Thai Boxing Association of the USA), the oldest and largest Muay Thai organization in the World, was founded in 1968 by Ajarn Surachai "Chai" Sirisute (Ajarn is Thai for "head instructor"). Ajarn Chai came to the United States with a vision to spread Muay Thai throughout the world, and he is the first-ever Thai boxing instructor to teach Americans the art. He has worked tirelessly for 40 plus years to that end. We are indeed grateful to Ajarn Chai for his gift of the knowledge of Muay Thai.