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Coaching Staff


Head Coach Bitsy Esparza

Bitsy Esparza is the head coach and owner of Black Widow MMA. Having trained Muay Thai for over 4 years in Austin, she has been an instructor at Cooper MMA and Guerrilla Muay Thai. Bitsy has trained with Thai legends Saekson Janjira, Kaensak, Jongsanan and Neungsiam. She has also worked with top MMA fights Cris Cyborg, Evangelista Cyborg, Valentina and Antonina Schevchenko, Paulo Tocha, Kevin Ross, Gina Carano and many more.


Coach Jorge Castaneda

Coach Jorge Castaneda is a Jiu Jitsu Brown belt and avid competitor. Jorge has been an active Jiu Jitsu competitor since he was a white belt. Jorge has competed in the Onnit Invitational, Onnit World Open, International Brazilian Jiu jitsu Federation, IBJJF No-Gi Worlds, Fight to Win Pro, and many other competitions.  He has been actively teaching since March 2013.