Our Team

Our Team!

Breaking Thru For You!

Stefanie Alberts


Stefanie Alberts is the unrelenting, unconventional, and unstoppable power behind 2 life-changing martial arts learning centers in San Diego.

Will Hall

Senior Instructor

Will is the Senior Instructor for our USSD Bridge2breakthru karate schools. He had his own breakthrough at age 13 when he discovered fighting bullies does not work but living your life with focus, discipline and self-confidence does.

Andrew Walko

Chief Instructor

Growing up as a student of United Studios, Andrew embodies the character that is created from commitment and further exemplified as Chief Instructor of our USSD Bridge2breakthru School.

Craig Joyner

Owner B2K Encinitas

Craig is a Master at United Studios of Self Defense, the owner and instructor at USSD Encinitas and now brings his amazing talent and experience to USSD Bridge2breakthru. A native of Michigan, Craig moved to San Diego after completing his education as an electrical engineer in 1982.

Benjamin Alberts

Assistant Instructor

He may have been ‘born’ into the art as Sensei Stefanie’s son, but this Instructor earns his own, proving to himself and every student that one can succeed in any area of life they choose, regardless of their limitations.

Madison Alberts

Assistant Instructor

Ms. Madison continually demonstrates that ‘size does not matter’ with 4 championship sparring trophies despite her 5’1” frame.  She knows that although she can fight any fella she does not have to because her confidence sets her apart from most gals her age.