Where Kids Become Champions
The highest-rated martial arts in Plano, for kids, teens, and adults.Claim your 2 Session for $47 and see why hundreds of local families train at S1K.
Martial Arts For Every Age
Authentic Muay Thai martial arts, taught the right way for kids, teens, and adults.
Ages 5 to 12Kids Karate
View programAges 13 to 17Teens Karate
View program
Ages 18 and upGet Some Karate
View programConvenient Martial Arts Classes
Classes six days a week, after school and evenings, for every age from 4 to adult.
Kids Muay Thai
Teens Muay Thai
Adult Muay Thai
Why Should You Choose S1K?
Our martial arts classes are about more than punches and kicks.We build confident, focused, capable people, one class at a time.
Confidence that lasts
Students stand taller, speak up, and face challenges with a calm, focused mindset that follows them everywhere.
Real Muay Thai Training
Authentic striking from experienced coaches, in a controlled, age-appropriate way. Skills that actually work.
Coaches Who Care
Background-checked, experienced instructors who learn names, celebrate wins, and push students to be their best.
Discipline and Focus
Structure, respect, and self-control that carry straight over to school, home, and everyday life.
Fun and Exciting Classes
High-energy, fun classes that keep kids excited to come back, and keep adults coming back too.
Beginners Always Welcome
No experience needed. Whether it is a child stepping onto the mat for the first time or an adult starting fresh, beginners are always welcome here, ages 4 and up.
Meet Coach Ralph
Coach Ralph Machio has trained in martial arts since 1989, when he was nine years old and his father enrolled him to build discipline, focus, and confidence. Today he is a Master in Taekwondo, a certified Muay Thai Kickboxing coach, and the founder of Source One Karate School, which he opened in 1989.
He has helped countless students unlock their inner greatness, both on and off the mat. He is proud of the programs he has built, but his most important roles are husband and father. His mission is simple: to develop strong, confident, disciplined people who succeed in every area of life.
Loved by Plano Families
Hundreds of local families recommend S1K.Here is what just a few of them have to say.
Start Your Free 30 Days Today
Fill out the form and we will help you find the perfect class time.Your first month is on us. No pressure, no obligation.
- Friendly coaches who are background checked and approved
- A safe, clean space families trust
- Convenient classes that fit real family schedules
""