OPEX Riverdale's Staff

Meet the team that makes it all possible

OPEX Riverdale | Adam Castillo
Adam Castillo
Owner / Head Coach

My journey with fitness began as a coping mechanism to get through the darkest times of my life. Hitting the gym, running and yoga became a spiritual practice that continues to guide me towards liv...

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OPEX Riverdale | Waldo Yago
Waldo Yago
Coach

Physical activity was not a part of my youth.  Due to my ignorance and misguidance my health was in a steep decline and growing exponentially worse with each passing year. At over 300lbs, I was mor...

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OPEX Riverdale | Felix Manjarrez Jr.
Felix Manjarrez Jr.
Coach

Since 2015 I have been detailed to the New York City Fire Academy, assigned to the Health & Fitness Unit. With my 15 years of service and experience in the New York City Fire Department, 3 of w...

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OPEX Riverdale | Johnel De Los Santos
Johnel De Los Santos
Floor Coach / Apprentice Coach

I was born and raised in New York City. A former division IA collegiate athlete in baseball and amateur wrestling, briefly trained in Brazilian Jiu Jitsu and experienced in functional training. I b...

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