About Us

Get the Advantage! Martial Arts Advantage is Broken Arrow's Favorite Place for Martial Arts!

Our core program focuses on instilling self-control, focus, self-discipline, goal setting, positive attitudes and respect in each student whether they are 3 or 73 years old. Each student will be on a journey of a lifetime creating a stronger body, sharper mind, and unstoppable spirit… while discovering their unique abilities and talents.

Learning is the key to all your work and progress and making the environment super FUN and POSITIVE is the best way to do that. Keeping you safe while helping you reach your goals is our goal.

Parents who have been with us for a while say that Martial Arts Advantage is an IMPORTANT part of their family life, as it brings them closer together and keeps them happier and healthier. Not to mention all the great memories they create while spending quality time together.

Beginners Welcome! Students have a ton of fun while learning important lessons for life. In a caring environment, with positive role models to enhance personal growth, students improve at an individual pace and learn respect for themselves and others. We will work with you no matter what age, skill or fitness level you are so there’s nothing to worry about… we promise!    

Do you believe that Martial Arts is just about kicks and punches or winning trophies for display? We don’t. Our objective is to teach the life-affirming art of authentic Tae Kwon Do and to instill self-respect in each student.

Check out the SUPER-LOW web special going on right now! Our classes fill up fast because it’s such a great deal so register today or stop by our facility and see what all this Tae Kwon Do buzz is about!

At our school, we use our ability as teachers and mentors to influence rather than force students into action. This creates self-discipline. By realizing they have choices and the ability, both physical and mental, to deal with challenging situations, our students gain the CONFIDENCE to overcome them.

Children often feel scared and helpless when they become victims of neighborhood or school bullies because they don’t know how to deal with these aggressors. Martial Arts Advantage not only teaches the self-defense skills that our children need in today’s society, it also instills the confidence and self-discipline that leads to self-respect.

Most people think karate teaches kids how to fight. Instead, we teach them the skills and give them the confidence so they don’t have to fight!

Our Instructors are not only some of the nicest people you’ll meet, they’ve have spent many years devoted to training in the art of Tae Kwon Do and other martial arts. Through extensive testing, certification and tournament level competition, we’re proud to say our instructors are the BEST!

We can't wait to empower you and see how fast you grow with us! Join Martial Arts Advantage to experience the best prices, the most amazing staff, and have the most fun you’ve EVER had getting fit!


Meet Jim Hammons
Owner at Martial Arts Advantage in Broken Arrow, OK
8th Degree Black Belt

Meet the Instructors

Chief Master Jim Hammons, Master Instructor, holds an 8th Degree Black Belt in Tae Kwon Do. He has been inducted into the World Martial Arts Hall of Fame, is a 3 time World Champion, and holds 16 National Champion titles.

He has enjoyed teaching martial arts for nearly 40 years, and is a devoted husband and loving father of four.


Meet Mrs. Karen Okerstrom
Instructor at Martial Arts Advantage in Broken Arrow, OK
4th Degree Black Belt

Mrs. Karen Okerstrom holds a 4th degree Black Belt. She is also one of our Fitness Kickboxing Instructors.

She’s a devoted wife and mother who enjoys spending quality time with her family and a gold medal winner from the Women's Team on Team USA.


Meet Mr. Stanley Green
Instructor at Martial Arts Advantage in Broken Arrow, OK
5th Degree Black Belt

Mr. Stanley Green currently holds a 5th Degree Black Belt in Tae Kwon Do and is a certified Personal Trainer.

He is a dedicated husband and father to three lovely daughters and is passionate about Tae Kwon Do and the many benefits it brings to people’s lives.

Meet Mr. Gordon Okerstrom
Instructor at Martial Arts Advantage in Broken Arrow, OK
5th Degree Black Belt

Mr. Gordon Okerstrom holds a 5th Degree Black Belt in Tae Kwon Do, and a 2nd Degree Black Belt in Hapkido.

He’s a doting husband a dad to three boys and enjoys spending quality time with his family. He also likes to ride his motorcycle on beautiful days and thoroughly enjoys teaching martial arts.

Meet Master Eric Pizarro
Instructor at Martial Arts Advantage in Broken Arrow, OK
6th Degree Black Belt

Master Eric Pizarro is a 6th Degree Black Belt in Tae Kwon Do and a Senior Instructor at Martial Arts Advantage. He's been studying and training in martial arts for over 34 years. Being a martial arts instructor is his full-time job, and he loves it!

He started studying Tae Kwon Do in 1982 at nine years old. At 13, he began training in boxing and competed as an amateur boxer. A few years later, he added American Karate to his activities. In 1996, he began training in Bujinkan Budo Taijutsu and achieved the rank of Shodan (1st degree black belt) while studying in Japan. Under the instruction of Shihan Kevin Millis, he's earned the rank of Sandan (3rd degree).

Master Pizarro has also trained in Judo and Aikido, and speaks Spanish, Italian, and Japanese.

He is currently ranked in the following arts:

  • 6th Degree Black Belt– Tae Kwon Do
  • 3rd Degree – Bujinkan Budo Taijutsu
  • 2nd Degree – American Karate
  • Level 1 Certified Instructor - Krav Maga
  • Licensed instructor - Jun Fan Jeet Kune Do

Click on a program to get started today!

How to Get Started

Come join our Broken Arrow, OK facility! We offer programs in Kids Martial Arts, Adult Martial Arts, Kickboxing, Krav Maga, Birthday Parties, and Summer Camp . Choose a program that most interests you and take the opportunity to sign-up right here on our site for one of our awesome web specials. Or feel free to give us a call at (918) 258-9821 if you have any further questions. We hope to speak with you soon!