
Discipline
Showing up on the days you do not feel like it is the whole skill.

About K3 · Fitness • Protection • Success
Building Stronger People, One Class at a Time. K3 opened in 1996 and never moved on from the idea behind it: teach real skill, and let confidence follow.

Master Doyle McMahan
Founder & Chief Instructor
Meet your instructor
Master Doyle has trained for 53-plus years and served as a combat veteran. He opened K3 in 1996 to give kids what that life taught him: real skill, and the character to use it well. 30 years later, that standard has not moved.
Belts change color; character changes lives. Respect, self-control and courage are taught in every class, and he holds his team to the same.
Our instructors teach Krav Maga, Karate, MMA, Kickboxing, blended by age and goal, so a six-year-old learns control while an adult learns real self-defense.
"Building Stronger People, One Class at a Time."
4.7★
Google rating
53+
Years of training
30
Years in Roseville
4
Disciplines taught
The standard
Five things every class trains, whether your athlete is four or forty.
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On the mat with you
Tap a card to read the story behind the belt.
Parent proof
Jamie Peterson
Google review
“We LOVE K3! My daughter has been a student here for nearly a year in the Little Dragon program, enrolled right after her 4th birthday, and it's been an absolute blast seeing her grow in her strength, skill, and confidence.”
Kyle
Google review
“My son has been so excited to get started here and learn! The facility is very clean and professional, the staff are very friendly and helpful, and the location is perfect!”
Joseph Gogue
Google review
“K3 Martial Arts has truly been a life-changing experience for my daughters, and I could not be happier with the outcome. From day one, the instructors have been supportive, professional, and enthusiastic about what they do.”
Kristen Dietrich
Google review
“Our experience with K3 Martial Arts has been wonderful. My daughter is naturally a little timid, and our family has been going through some big life changes. The program has been such a positive outlet for her.”
Richard Tuggle Jr
Google review
“Love this place! My son has been attending for about 6 months now and the difference is remarkable. His balance, strength, discipline and leadership are among the most noticeable improvements.”
Asi Varo
Google review
“K3 Martial Arts has really helped my son come out of his shell. He's more confident and social now.”
Bucky Orr
Google review
“K3 Martial Arts is phenomenal! We couldn't be happier with our experience at K3 Martial Arts.”
One free class, no pressure. Pick a time that works and we will take care of the rest.