Chief Instructor Jamey D. Olsen (J.D.) is a highly motivated, focused, and driven martial artist.   He fully understands the meanings of dedication, loyalty, honor, and mission accomplishment.  He has executed successful seminars, designed many successful martial art programs and trained many different types of people from kids to forward deployed military members from the United States and our allies in hand to hand combat.

J.D.'s martial arts quest began when he was a young boy.  After watching martial arts legend Bruce Lee doing moves which seemed to be magical.  During his junior and high school years he earned Black Belts in martial arts styles Tae Kwon Do and Shorei-Ryu Karate.       

After graduating high school, he entered the United States Air Force where he has led teams on explosive ordinance detection and chemical warfare units.  He was also put in charge of vital tasks where he supervised and coordinated teams on projects that were in direct link to the President of the United States requiring top-level security.   

Watching films with martial artist Steven Seagal performing joint locks and throws that he felt would be a great compliment to the techniques he already possessed.  Desiring to learn Aikido from its place or origin J.D. volunteered to take a military assignment to Tokyo, Japan.  While there for almost a decade, he earned Black Belts in Combative Aikido, Jui-Jitsu Submission Fighting, and Modern Kali under Martial Arts Unlimited Director A.J. Weimer.  He has been featured on the Armed Forces Network T.V. stations overseas and has also been featured in newspapers around the world for his accomplishments with self-defense programs, martial arts and the U.S. armed forces.  

He has taught self-defense, hand-to-hand combat, aggressor neutralization, to Law Enforcment, Japanese Defense Force members, correction officers, doctors, lawyers, bodyguards, amatuer Mixed Martial Arts (MMA) fighters and U.S. Military Special Operations members.  With over 30 years of experience, J.D. Olsen is a true professional martial artist. 

 In 2010, J.D. received his third degree black belts in Combative Aikido, Modern Kali, Jui-Jitsu Submission Fighting, and Zembujitsu Total Fighting Concepts, all certified under the United States Martial Arts Association, the Progressive Martial Arts Association and the Martial Arts Unlimited Association.  Currently he holds six third degree Black Belts and one first degree Black Belt.  He is also a Certified BACK OFF! Women's Self-Defense Instructor.  He has also earned the rank of Phase 2 Level 2 under Sifu Ron Balicki in the art of Kali.  He is also the director for the Martial Arts Unlimited Association. 

Currently J.D. is the owner and Chief Instructor at Keishidojo Martial Arts & Fitness Center is Sumter SC largest most state of the art premier martial arts facility.  The Dojo is 4000sqft facility of martial arts and fitness equipment. 

He is also a volunteer for the questions and answers service Allexperts.com.  He has answered over 150 questions on various martial arts and self-defense subjects and is now labeled as the "TOP EXPERT" in that subject.

Assistant Instructor Joe Ardis

In December 2009 Joe Weighed in at 380 Lbs.  His life was to the point where a XXXX shirt was becoming too tight.  Joe was winded from walking less than 100 yards.  If he had to climb any stairs or an incline it was a huge battle and would completely wear him out.  As a New Year’s resolution Joe  decided to sign up for Brazilian Jiu-Jitsu at Keishidojo Martial Arts & Fitness Center.

“My first class was tough.  Just doing basic exercises made it hard to breathe, I had trouble physically completing the task; my body just could not carry itself.”- Joe

For the first time in Joe’s life he refused to quit.  Martial Arts were not going to beat him.  Every item eaten was documented and reviewed every week.  It wasn’t about losing weight any more, it became about becoming a better person.

“I remember Joe shrimping for the first time; he moved down to the end of the mat and was a nice shade of purple.  I pulled our instructor to the side concerned he was having a heart attack!” ~Tank

Joe wanted quicker results, so he decided to also do the MMA class, morning work-outs and going to the gym every chance he could.  His whole view changed in this time, and he went from looking at a flight of stairs thinking…”there just has to be another way than to go up these stairs” to flipping over 400 Lb. tractor tires just for the fun of it.

Fast forward to December of 2012 and Joe has managed several major accomplishments.  He has lost over 100 lbs.  He has also completed three Spartan Races, being one of two Keishidojo Spartan Tribe Members.  He also earned his purple belt in BJJ.  He is the man behind Keishi-Fit, our mix of Cross-fit, P-90X, and Insanity with a mixed martial arts twist.  Joe has been bitten by the healthy bug and made more goals for 2013 including to compete in Tough man competition, run two more Spartan Races, participate in a ½ ironman trilithon, and loose another 100 lbs.  Life has anything but slowed down, instead it has excelled and he is meeting the challenges head on.  The confidence and skills obtained at Keishidojo to help him succeed not only in the athletic world but his relationships and lifestyle has improved greatly.  Joe is currently studying for his instructor license with a goal to teach and help motivate people to a new lifestyle where anything is possible.  2012 was a big and eventful year, we are excited to see what else he will accomplish in 2013.