OUR TEAM
ISAIAH SEPULVEDA
Coach Isaiah is our head boxing and MMA coach. He brings to the gym over eighteen years of experience in boxing and kickboxing. He has also earned a purple belt ranking in Brazilian Jiu-Jitsu and has coached wrestling for several years. He is also a certified personal trainer with Applied Functional Sciences (CAFS) and Functional Soft Tissue Transformation (FSTT) specializations from the Gray Institute.
LUKE SORRENTINO
Luke Sorrentino is the former Apex Fight League Lightweight Champion and a top-ranked title contender with extensive competitive striking experience. He brings a proven competition background to Fortify’s kickboxing program, with a strong understanding of fight preparation, technical execution, and performing under pressure.
SAVANNA SEPULVEDA
Coach Savanna is a jiu-jitsu and self-defense coach. She brings to the gym nearly ten years of varied experience in Krav Maga, kickboxing, and competitive Brazilian Jiu-Jitsu. She has earned her purple belt ranking in Brazilian Jiu-Jitsu and is an active competitor in the local circuit. Savanna is also a certified personal trainer with Applied Functional Sciences (CAFS) specializations from the Gray Institute and as a NASM Nutrition Coach.
BLESSED VARGAS
Blessed Vargas is Fortify’s wrestling coach, bringing a strong wrestling background and a practical approach to grappling development. He is also a high school wrestling coach and an active BJJ competitor.
His coaching emphasizes takedowns, control, pressure, and the ability to connect wrestling smoothly into Jiu-Jitsu and MMA. He plays an important role in helping Fortify athletes become more complete and confident grapplers.
SOUREN KESHISHIAN
Souren Keshishian is a longtime Fortify kickboxing student and active amateur competitor with extensive experience training and competing in striking. He is the Rage in the Cage K-1 Lightweight Champion and a top-ranked Apex Fight League title contender.
Souren brings his competitive experience into the gym with a strong understanding of technical striking, fight preparation, and performing under pressure.
SILAS DIAZ
Coach Silas is the head coach of our kickboxing program, bringing over a decade of experience in training and competing across multiple disciplines, including Muay Thai, K-1, and Shotokan karate.
His well-rounded background extends to folkstyle wrestling and Brazilian Jiu-Jitsu and an active competition career as a grappler, where he has earned his blue belt ranking. Coach Silas has achieved remarkable success in his career, earning two UCFC AZ state titles and an IKF world title, showcasing his skill and dedication at the highest levels.
RIO PAYNTER
Coach Rio is a key part of our striking program as one of the leaders of our padwork/conditioning program. Along with her black belt in Tae Kwon Do and several years of boxing experience, she brings strong energy, finesse, and a friendly but challenging drive to every class she teaches.