About Checkmat

CHECKMAT is an international academy, competition team, and family of Brazilian Jiu-Jitsu (BJJ) practitioners founded in 2008 by Master Leo Vieira, a 6th degree BJJ black belt and Judo black belt. Checkmat has affiliate academies in over 84 American cities and 16 countries worldwide. The team is headquartered in Signal Hill-Long Beach, California (USA), which regularly hosts “The Mundials,” the world championships of BJJ.

Master Leo, nicknamed “Leozinho” or “Little Lion,” is a two-time World Champion and two-time ADCC winner. He is internationally known for his steady leadership and devotion to his students. He sees both the art and science within BJJ, emphasizing technical prowess and invention while also strongly believing in the dynamic expression and individuality of each practitioner. In any given month, you can find Master Leo teaching a world champion, a Sheikh, a prince, a police officer, a nurse, a college student, an elementary school student, or a beginner on her or his first day all with the same kindness, interest, and passion. It is his belief that Checkmat is about more than winning trophies and medals, it is focused on inspiring a healthy and positive individual who goes on to create a healthy and positive community.

Under Leo’s guidance and leadership, Checkmat has forged itself into one of the Top 3 BJJ Teams in the world. Checkmat boasts scores of Adult & Masters IBJJF World Champions, and we are privileged to have access to them for their knowledge, techniques, and leadership. 

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