Medfield, MA · In Family We Trust
Taught by Sensei Rolando Perez — 50+ years on the mat, still on the floor teaching every week. Since 2011 we have taught Medfield kids how to stand tall, focus, and avoid a fight rather than pick one.
01 / Why Medfield families choose Perez Martial Arts
Parents don't bring their kids here just for martial arts. They come because they want a child who listens the first time, stands up for themselves, and walks into any room with confidence. Sensei Perez's rule since 2011: martial arts should teach a child to avoid a fight, not pick one.
Laser Focus
Sharper concentration in school
Real Confidence
Quiet strength, not bravado
Respect & Discipline
Better behavior at home
Strong & Healthy
Active, fit, and energized
02 / Our Classes
Little Ninjas · Ages 3–4
A 30-minute preschool class built around how threes and fours actually learn. Structure that looks like play.
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⭐ Most PopularKids Martial Arts · Ages 6–12
Focus that follows them into the classroom and self-control that shows up at home. Sensei Perez's specialty.
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Teens Martial Arts · Ages 13+
A room where effort is the only status symbol. Fitness, confidence and holding their ground under pressure.
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Adults Martial Arts · Ages 17+
Practical self-defense and real conditioning. Beginner-friendly from the first class.
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Birthday Parties · Ages 5–12
90 minutes of games, board breaking and a cake cut with a samurai sword. $499 for up to 15 guests.
Learn More03 / What sets us apart
Kids leave each class feeling proud and accomplished — momentum that compounds week after week.
Belts and stripes mean something here. Every promotion is earned through real effort and skill.
We mentor — never drill-sergeant. Every kid is encouraged, never intimidated.
Kids learn to listen, focus, and follow through. Parents see it at homework time.
04 / Your Head Instructor
Sensei Rolando Perez started training at 12 years old and has never stopped — more than 50 years on the mat. He opened Perez Martial Arts in Medfield in 2011 and still teaches classes himself, with a specialty in ages 4 to 10. He built the academy around one idea: martial arts should teach a child to avoid a fight, not pick one.
"In Family We Trust"
Read Our Story05 / Local families
"Our son has been going here for 3 years, and Sensei Perez has been amazing. Every class he teaches, he's there 100% for the kids. He's a great mentor and role model, a staple in the Medfield community. Our son's confidence and sense of responsibility have dramatically improved."
Google review
Medfield
"My twin 4-year-olds have been at Perez Martial Arts for a month. We've attended birthday parties and even hosted our own. Mr. Perez and his instructors are amazing at keeping the Little Ninjas classes fun and engaging. Highly recommend!"
Marykate Hunt
Medfield
"We met one on one with the lead instructor, and he took time to talk with both my children and me about what we were looking for. Longer attention spans, less impulsivity and confidence were high on our list. Our search ended at Perez Martial Arts."
Google review
Medfield
06 / Questions?
The things Medfield parents ask us every week. If we missed yours, just ask — we'll respond in minutes during business hours.
See All FAQsLittle Ninjas starts at 3. Kids Martial Arts runs 6 to 12, Teens is 13 and up, and adults train from 17. Not sure where your child fits? Call us and we will tell you honestly.
Walk in this week. We'll take it from there.