top of page

Hamilton Ash

Head Coach

Our head coach is an active professional MMA fighter representing teams across the country (Whitefish BJJ, Gracie Barra Kirkland, Seattle Boxing Gym, Fight Ready MMA), a professional boxer under Charlie Moreno of Guadalupe Boxing gym, and a Brazilian jiu-jitsu blackbelt under Matt Thornton of Straight Blast Gym. Coach Ham began his martial arts journey in 2008 and has since competed internationally from small organizations to big organizations like LFA and Bellator MMA. Our head coach has taught youth and adults the art of Brazilian jiu-jitsu since 2014, and has since grown into a world-class instructor with experience teaching elite-level fighters from across the country. Coach Ham is currently living in Maricopa, AZ with his beautiful wife and four children. He is a full-time nursing student enrolled in the CEP program with CAC and ASU and is scheduled to graduate with his BSN in nursing in December of 2024. It's equally important for our mat guardian to break a mental sweat!


Gummi Halldorsson

Strength Coach

Hailing from Iceland, land of fire and Ice, Coach Gummi has a Bachelor’s of Science in strength and conditioning, along with 16 years of strength training experience, including participation in several powerlifting and strongman competitions. The Berserkur Gym welcomes this world class strength Viking coach with his mental and physical tools that focus on injury prevention and athletic performance. Coach Gummi now lives here in Maricopa, AZ with his beautiful daughter and is excited to help his students reach their fitness goals with Icelandic; Viking power!

bottom of page