Our Story

 Improvement Warrior Coaches

Owner/Improvement Warrior Coach


 (Mixed Locations-Hilliard, Downtown Columbus, Dublin)

columbus personal training

I’ve owned my business since 2007, and have literally helped 1000’s of local Columbus residents just like you get in the best shape of their life, get healthier, and look better naked!

The total amount of weight, inches and unwanted body fat is in the tens of thousands and it keeps growing every week!

Decide to be the Improvement Warrior and watch your life change!

Jason Yun is a graduate of The Ohio State University, with an earned Bachelor’s of Science degree in Sports and Leisure Studies with an emphasis in fitness, coaching, and recreation. He is a Certified Strength and Conditioning Specialist (CSCS) and Certified Personal Trainer (NSCA-CPT) through the National Strength and Conditioning Association (NSCA). Is a Kettlebell Athletics Instructor (KBA).  Is a certified United States Weightlifting Sports Performance Coach (USAW SPC). Is a Certified Sports Nutritionist (CISSN) through the International Society of Sports Nutrition (ISSN). Has achieved his certification as a Youth Fitness Specialist (Levels 1) (YFS(1)) through the International Youth Conditioning Association (IYCA), and is currently working on Level 2 and 3. Also earned his Youth Speed and Agility (YSAS) certification in 2012 also through the IYCA. In 2012, he earned his Perinatal Fitness Certification (Fit Moms) to be able to work with expecting and post partum women. In 2013, he earned his Functional Movement Screen level 1 certification through Functional Movement (FMS1).

Was recently inducted into the Fitness Business Insider Hall of Fame (October 2011) for his continued dedication towards clients and the fitness industry as a whole.

In July 2012 earned his Fit Moms Certification as a Perinatal Fitness Instructor for women. An online workout site for expecting moms is currently in development and should be ready in 2013. If you are an expecting mom and would like to work with Jason please email.

Some of Jason’s past related experience placed him as an intern assistant strength and conditioning coach for several Olympic sports teams at the University of Louisville. He has worked as a personal trainer, strength coach, and as an instructor of kid’s fitness classes and rock climbing activities. Adult, Child, and Infant CPR and AED certified. Successfully completed a flexband training seminar and a one-on-one coaching session with Dave ‘The Bandman’ Schmitz for the applications of Resistance Bands for flexibility, fitness, and resistance training.

He has trained for over 23 years in various disciplines in the sporting and fitness worlds and now brings to you all those years of training and knowledge in the quest to help you achieve the body, health, and mind you’ve always wanted through Improvement Warrior Fitness!

Read Jason’s Article on How to find the Right Personal Trainer on Columbus Underground

Read Jason’s Interview on Columbus Business First


Head Coach Hilliard Evening Improvement Warrior Coach

Rick Locke YFS

rick locke helps people get in shape fast and burn body fat Rick Locke has been involved in sports throughout his entire life. Raised in Urbana, Ohio he competed and lettered in Football, Basketball, and Track for the UHS Hill climbers. While serving in the U.S. Army as a Military Police Officer, he was also a member of the track team while stationed at Ft. Bliss El Paso, TX and Vicenza Italy. As an MP and, later a civilian Peace Officer, Rick is well practiced in multiple facets of hand-to-hand combat, strength & agility training, and as an emergency responder. In fair weather, he also enjoys cycling extended distances on Ohio’s bike paths. There are not many athletic challenges he will shy away from.

“Besides family, I have two passions: Fitness and music”, says Rick. “As a DJ, I get to live out my dream of making a difference in others lives by performing at weddings and other personal events, as well as in the club scene. Being a fitness instructor satisfies the other desire to help people attain their fitness goals through proper training and by being a good example.”

Rick is trained by Jason Yun of Yun Strength & Fitness Systems and has earned his Youth Fitness Specallist (YFS) Certification through the International Youth Conditioning Association (IYCA)

He is currently working on earning his Kettlebell Certification.

Press Release About Rick Locke and Special Certification

Improvement Warrior Fitness Assistant Coach (Hilliard, Powell)

Stephanie Woodrow ASCM

personal trainer steph woodrow improvement warriorHello there! My name is Stephanie Woodrow! I live in Powell with my husband Dave, and my 7-year old daughter, Nadia.

I am an energetic, athletic, and a very cheerful person. I like to run, hit the gym daily for a workout, eat healthy, and stay fit. I also love talking to people! I have a positive outlook in life and work hard to reach my goals. I studied Mental Health, Social Services, and Psychology at Columbus State and feel like the mental aspect of exercise is just as important as the physical.

I spend my free time as a volunteer at Liberty Elementary School on a weekly basis, organizing a health and wellness program. The idea is to instill exercise through alternative workouts coinciding with recess. I am affectionately called “Coach Steph” by the children and I take pride in being a catalyst in making fitness fun for kids!

I firmly believe that forming good fitness habits can start very early in life. In addition, I feel that it is very important to build positive character traits through physical education and fitness. I have taught dance, gymnastics, and personal trained for many years, and I can’t wait to work with you at Improvement Warrior Fitness!

Stephanie is a certified Personal Trainer through the American College of Sports Medicine






Improvement Warrior Fitness Assistant Coach (Downtown Columbus, Hilliard)

Kaitlin Smith (aka Rosa)

short-term fitness bootcamp goals jason yunBio coming soon











Improvement Warrior Fitness Assistant Coach (Downtown Columbus, Franklinton, and Hilliard)

Gabe Flores

franklington group workout crossfit zumba bootcamp Bio Coming soon












Improvement Warrior Fitness Assistant Coach (Downtown Columbus, Franklinton, and Hilliard)

Darrius Cannon


Bio Coming soon……Downtown Fitness Bootcamp & Group workout classes


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