We Live To Help You Train

Here at Mongrel Fitness & Brazilian jiu jitsu we are all about making you better. Our core values are listed below.  These values underlie our work, how we interact with each other, and which strategies we employ to fulfill our mission.  The core values are the basic elements of how we go about our work and are the practices we use every day in everything we do.

Core Values

#1 Lead by Example

#2 Create a safe atmosphere for Training and Fun

#3 Give your best

#4. Leave your EGO at the door

#5. Provide the best experience we can


Jon JB Burnley
Jon JB BurnleyOwner
Jon “JB” Burnley is a Brazilian Jiu-Jitsu Black belt under Rick McCoy (MMA Institute / Gracie
Barra). As a veteran of the 82 nd Airborne, Professor Burnley brings a high level of attention to detail and
game planning to the table that is second to none. As an avid competitor, JB knows and
understands how to prepare students for competitions and how to better position them to succeed.
Professor Burnley’s open mindedness and exploratory nature when it comes to Brazilian Jiu-Jitsu leads to
him making basic techniques sharper and more effective, in addition to being innovative and adding
new wrinkles to the art.

Some of Coach Burnley’s accomplishments include;
CrossFit Level I Instructor
AFPA Certified Personal Trainer
AFPA Certified Nutritionist
2008 Pan-American Jiu-Jitsu Championship – Silver Medalist
2009 Pan-American Jiu-Jitsu Championship – Gold Medalist
2016 International Brazilian Jiu-Jitsu Federation Atlanta Open – Bronze Medalist
2017 International Brazilian Jiu-Jitsu Federation Charlotte Open – Bronze Medalist
Member of the inaugural ‘Jiu-Jitsu Dream House’ – 2017, Las Vegas

Chris Overby
Chris Overby
Coach Chris Overby is a Brazilian Jiu-Jitsu Brown belt under Rick McCoy (MMA Institute / Gracie Barra).
A lifelong Virginian and resident of Chesterfield, Coach Overby gives back and continues to serve
Chesterfield County as a Supervisor in local government. Coach Overby’s technical prowess when
playing open guard is second to only his ability to effectively convey the knowledge he has to students.
Coach Overby is an avid power lifter and is always more than happy to share his knowledge with
Tim Merriman
Tim Merriman
Coach Tim Merriman is a Brazilian Jiu-Jitsu Brown belt under Rick McCoy (MMA Institute / Gracie Barra.
Coach Merriman’s background as an educator makes him an ideal instructor due to his ability to break
things down in a simple manner. While Brazilian Jiu-jitsu is not a simple martial art, Coach Merriman is
able to convey the techniques in a way that everyone, from the newest white belt to the oldest ranked
belt, is able to grasp the concept and put into effect almost immediately. His patience and kind
demeanor make him one of everyone’s favorite instructors.
Steven Frazier
Steven Frazier
Steven Frazier started his martial arts journey at the age of 16 at The Inner Stairway in his hometown of Charlottesville, VA. Through consistent training he received his black belt in Tae Kwon Do. Life then brought him to Midlothian, VA in 2007 where after a few years he found the art of Brazilian Jiu Jitsu. 2017 was when he found his Jiu Jitsu home and family at Mongrel. Steven is currently a purple Belt under Professor JB Burnley. As a longtime student of martial arts Steven believes one of the most important things a person can do is to give back to the art that has inspired him. He currently leads the 6:00am training sessions and encourages all students to seek training any time their schedule allows.


Achieve Your Fitness Goals

We have flexible membership packages to suit all levels of athlete and achieve your fitness goals