OUR MISSION
At Modern Day Gladiator MMA, our mission is to create a Mixed Martial Arts gym that values integrity and respect. We provide a training environment that instills confidence, self-discipline and perseverance. With our head instructor who has over a decade of experience, a top-quality facility and inclusive programs that encourage individuals to achieve their highest potential in MMA and beyond. Through positivity and diligence, we strive to shape well-rounded individuals that embody our values and help build a stronger community around them.
WHAT MAKES US DIFFERENT
Having over six years of MMA instruction experience at one of the country's most renowned martial arts schools, we aim to provide an affordable & professional family-oriented martial arts academy for all ages & skill levels. We are dedicated to ensuring that anyone who walks through our door feels welcome & comfortable.
ABOUT THE OWNER
WILLIAM SIZEMORE
Owner of Modern Day Gladiator
I started training at a very early age. My dad was a kickboxer and I constantly was surrounded at the gym where he trained. As a kid, I was always more interested in grappling. You often found me off to the side, grappling with the local boxers and kickboxers. When my parents split up, I stopped going to the gym and started playing other sports. I was not dedicated to the gym anymore.
Then in high school, I started a backyard fight club with some friends and rediscovered how much I loved the competitiveness and challenge of fighting. By the time graduation came around, my mom gave me two options. The first option was that she would pay for me to go to college, and the second option was that she would pay for my membership to attend an MMA gym. The choice was clear to me. I could not see myself doing anything besides MMA.
After teaching at American Top Team East Orlando for over six years, I discovered how much I loved sharing my passion. MMA saved me from a dark place, gave me confidence and direction, and showed me values that helped me overcome anything life threw at me. I want to provide and make that same impact on other people's lives.
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My training in Mixed Martial Arts began over 16 years ago. Throughout the course of that time, I have had over 20 fights, both Amateur & Professional. However, through my fighting career, I found that my true passion lies in teaching.
I advocate the impact that MMA has had on my life, not only for the physical skills but for the core values it has instilled in me. These are all things that have allowed me to navigate through all of life’s obstacles. I would love nothing more than to give back and share that with my community.
Accomplishments:
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Black Belt in Brazilian Jiu Jitsu
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Breakthrough MMA 145lb champion
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Breakthrough MMA 135lb champion
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Rival Fight League 145lb champion
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Real Cage Fighting 145lb champion
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ISKF #1 ranked 135lb Amateur MMA Fighter in the World
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Amateur MMA Record: 11-2
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Professional MMA Record: 4-4
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RFC No Gi Champion
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Sosa MMA Cage Fighting No Gi Champion