Instructors
Allied MMA is where excellent programs and the most knowledgeable instructors come together to take you on a martial arts journey of a lifetime! All our instructors are either professional coaches or professional fighters and have years of competition experience and involvement in the boxing, kickboxing, Muay Thai, MMA, and Brazilian jiu-jitsu community.
Sam Radetsky
Specializations
Kickboxing
Full-contact Karate
MMA
A life-long martial artist who has studied and fought in a wide range of martial arts all over the world, Sam Radetsky brings over two decades of teaching experience to Allied. His kickboxing method is a unique blend of martial arts including Dutch, Thai, and Japanese kickboxing, and Japanese full-contact karate. While he has trained a number of successful amateur and professional fighters, he is happiest about the fact that he has introduced hundreds of people of all ages and abilities to the joys of martial arts.
Aaron Oreb
Specializations
Boxing
Muay Thai
Kickboxing
Aaron’s reputation as a fighter and a coach is well known in Santa Cruz and beyond. A USA Certified Boxing coach with over twenty-five years of martial arts experience, he has trained with Santa Cruz-based champions Francis Farley and Pauly Silva, and has competed successfully as an amateur fighter in boxing and kickboxing. Aaron is known for his enthusiasm, his keen eye for detail, and his world-class jab. He originally came to teaching with a fighter’s mentality, but after almost a decade of teaching, Aaron will be the first to tell you he has made a transition from competitor to coach. He now sees teaching as his true role in martial arts and is passionate about sharing Allied MMA with the community.
Coach Efrain
Specializations
Boxing
Muay Thai
With over 30 years of martial arts training, fighting, and instructing, Efrain is a skillful and patient teacher, comfortable with a wide range of ages and skill levels. He founded Muay Thai Cozumel in Mexico, where his effectiveness is seen through the success of his students, many of which have won championships with Coach Efrain in their corner.
Efrain is disciplined in Karate, MMA, Boxing, and Muay Thai. He has trained along side two-time world champion Freddy “Chato” Castillo, three-time world champion Humberto “Zorrita” Soto, and MMA legend and family friend Donald “Cowboy” Cerrone.
Efrain honed his Muay Thai skills at the storied Sityodtong gym, in Thailand, where he fell in love with the authentic Thai technique and also ventured to Cuba where he trained along side the elite talent of the renowned Escuela de Boxeo Cubana.
With his deep reverence for discipline and broad knowledge of martial arts, Coach Efrain is excellent at uplifting both individual students and group classes where he instills the confidence, motivation, and discipline needed to achieve their goals.
Coach Aaron
Specializations
Kickboxing
Aaron has trained kickboxing under Sam Radetsky since 2016. After his first class, Aaron was immediately drawn to the depth of technique and challenge of kickboxing. As an instructor, Aaron enjoys teaching classes as well as providing one-on-one instruction tailored to the fighting style and temperament of the individual student. His hobbies include gardening with his dog Arlo, watching combat sports, and his wife’s lasagna. And punching stuff, obviously.
Coach Ale
Specializations
Kickboxing
Ale is a dedicated kickboxing coach with a passion for helping members build strength,confidence, and discipline through striking.
She has trained consistently since 2017 in kickboxing, boxing, Brazilian Jiu-Jitsu, and MMA, including training under Allied MMA coaches Sam Radetsky and Aaron Oreb. Her coaching focuses on fundamentals, conditioning, and mindset while creating a supportive environment for fitness, skill-building, and competition.
Coach Gerardo
Specializations
Kickboxing
Coach Gerardo brings a lifetime of striking experience and a diverse martial arts background to Allied MMA’s adult kickboxing program.
He has over 15 years of Taekwondo training, including five years competing at the black belt level across California. Since 2018, he has focused on Muay Thai, kickboxing, and boxing, competing in amateur Muay Thai and boxing bouts.
With additional experience in MMA, Hapkido, and Eskrima, Gerardo emphasizes clean technique, conditioning, and adaptable striking for competition and real-world application.
Coach Adam
Specializations
Brazilian Jiu-Jitsu
MMA
Coach Adam is a Brazilian Jiu-Jitsu Brown Belt with over nine years of training and a strong background in MMA.
He has trained in kickboxing since 2018 and began coaching MMA in 2023. Adam focuses on fundamentals, conditioning, discipline, and helping athletes grow safely and confidently on and off the mat.
Coach Ryan
Specializations
Brazilian Jiu-Jitsu
Coach Ryan began his Jiu-Jitsu journey in the fall of 2018 shortly after graduating high school. What started as a new interest quickly became a full passion, with Ryan spending nearly all of his free time on the mats developing his skills and understanding of the art.
Early in his training, Ryan naturally stepped into assisting with kids’ classes. Working with the youth program helped him grow both as a practitioner and as a coach, learning how to guide young students while continuing to sharpen his own technique.
Becoming a coach wasn’t something Ryan originally planned — it developed organically through dedication, consistency, and a strong connection with the team. Today, he focuses on creating a positive, structured training environment where students of all ages can build confidence and strong fundamentals.
Coach Stephen
Specializations
MMA
Coach Stephen brings a deep and well-rounded combat sports background to his MMA coaching.
He wrestled for four years in high school and later trained under Seth Pringle of the legendary Lion’s Den. With over 12 years of MMA training, his style emphasizes ground-and-pound, positional control, dirty boxing, and efficient footwork.
Stephen compiled an undefeated 13–0 combined amateur and professional record across MMA, kickboxing, and boxing. Today, he focuses on practical technique, fight IQ, and real-world application.