“A champion should ask himself, “if I were to compete against myself, what would I practice to beat me?“
- Leo Vieira
Founder of Checkmat
At Checkmat South Texas we strive to engage the student through physical & mental training in Jiu-Jitsu, to become disciplined, confident, healthy individuals.
Checkmat
Hall of Fame
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![A male judo practitioner in a white gi, with a black belt, performing a move on a dark background.]()
Leo "Leozinho" Vieira
FOUNDER of Checkmat
2x ADCC Champ / ibjjf world champ
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![A man in a white martial arts gi with patches, standing in front of a red and white logo background.]()
Ricardo "Rico" Vieira
CO-FOUNDER OF CHECKMAT
HEAD OF BJJ AT CHECKMAT / FIGHTZONE LONDON
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![Two men smiling, one holding championship belts, posing against a gray background.]()
Leandro Vieira
CO-FOUNDER OF CHECKMAT
HEAD OF BJJ AT AMERICAN KICKBOXING ACADEMY
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![A male martial artist in a blue gi with arms outstretched, smiling, with a crowd in the background.]()
Marcus "Buchecha" Almeida
13X BLACK BELT WORLD CHAMPION
ONE CHAMPIONSHIP MMA FIGHTER
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![Judo athlete celebrating victory with arms raised in a sports arena, wearing a white judogi, with spectators and other officials in the background.]()
Lucas “Loucura" Leite
PROFESSOR / OWNER OF CHECKMAT LA HABRA & Upland
MULTIPLE TIME WORLD CHAMPION
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![A young man in a white jiu-jitsu gi holding a gold medal and a bouquet of flowers at a competition, smiling.]()
Samuel "Samurai" Nagai
WORLD CHAMPION
PROFESSOR AT INEVAT JIU-JITSU
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![A male Brazilian Jiu-Jitsu athlete in a blue gi with a black belt, raising his arms in victory after a match, exposing his chest tattoo of a roaring tiger and Asian characters.]()
Jackson Nagai
PANAMERICAN / AMERICAN NATIONAL CHAMPION
PROFESSOR / OWNER OF CHECKMAT CHINO
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![Youth martial artist in a blue gi celebrating after a match at a tournament, with spectators in the background.]()
Matheus Gabriel
2x WORLD CHAMPION
OWNER / PROFESSOR OF INEVAT JIU-JITSU
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![Young man in a blue Brazilian Jiu-Jitsu gi with logos, celebrating with arms raised and a big smile, in a gym or competition setting.]()
Jansen “Nenego” Gomes
WORLD CHAMPION
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![A young man in a white martial arts gi with patches and a black belt, standing in front of a logo that says 'Prefeitura,' wearing a medal around his neck.]()
Leka Vieira
FIRST EVER FEMALE BLACK BELT WORLD CHAMPION
USA MARTIAL ARTs HALL OF FAMER
OWNER / PROFESSOR OF CHECKMAT VALENCIA
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![A smiling woman in a blue Brazilian Jiu-Jitsu uniform holding a bouquet of yellow and purple flowers, with medals around her neck celebrating at a competition with a blue and yellow event backdrop.]()
Nathalie "Tata" Ribeiro
MULTIPLE TIME WORLD CHAMPION
PROFFESSOR AT CHECKMAT LA HABRA
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![A man in a white judo gi holding a gold medal and a large gold medal plaque, smiling and pointing up with his index finger. The background shows banners with logos and the text "2020 PAN JIU-JITSU Championship."]()
João Assis
IBJJF WORLD CHAMP / ADCC CHAMP
OWNER / PROFESSOR OF CHECKMAT HUNINGTON BEACH
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![Male jiu-jitsu athlete holding a medal at the European Jiu-Jitsu championship with a large banner in the background.]()
Adam Wardziński
2x IBJJF WORLD CHAMPION
Crown Winner
OWNER / PROFESSOR OF CHECKMAT POLAND
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![A female martial artist holding a martial arts belt, standing inside a fighting cage, wearing a black sports bra and white shorts.]()
Karen Antunes
IBJJF WORLD CHAMPION
OWNER / PROFESSOR of CHECKMAT PHOENIX
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![Man in a black Brazilian Jiu-Jitsu gi holding cash in a gym or martial arts training facility.]()
Matheus Luna
OWNER OF LUNAJITSU
PROFESSOR AT CHECKMAT FRESNO & LOS ANGELES
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![A male athlete in a martial arts uniform celebrating on a sports field with a crowd in the background.]()
Luiz Panza
ibjjf world champion
Owner / professor of Checkmat rolling hills
