ECF GYM
The Official GYM of
Extreme Cage Fighting
Join our Mixed Martial Arts GYM located on Long Island (Oceanside, New York), we have MMA classes along with kickboxing, muay-thai, jujutsu, and more!
Start training with MMA coaches on Long Island today!
Whether you’re searching for:
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MMA classes near me
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Oceanside NY MMA training
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UFC-style gyms on Long Island
…you’ve found your home at ECF Gym

Looking for the best MMA gym on Long Island? The ECF Gym in Oceanside, NY is the official training center of Extreme Cage Fighting (ECF) — New York’s premier MMA promotion. As the hub for Mixed Martial Arts training on Long Island, the ECF Gym is where real fighters train to compete, win, and dominate in the cage.
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MMA Training in Oceanside NY for All
At ECF Gym, we offer professional MMA training in Long Island for all skill levels. From beginners to pro fighters, our team of elite coaches brings years of experience in:
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Brazilian Jiu-Jitsu (BJJ)
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Striking and Kickboxing
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Muay Thai
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Wrestling
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Strength & Conditioning
Train in a real fight environment where our fighters prepare for live ECF events, often compared to UFC-caliber fights right here in New York.
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Why Choose ECF Gym on Long Island?
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Located in Oceanside, NY, just minutes from Rockville Centre and Baldwin
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Fully equipped MMA gym with mats, heavy bags, and weights
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Train with active ECF fighters and championship-level coaches
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Classes 7 days a week for youth and adults
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Real opportunity to compete in live MMA events in New York
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Visit the Best MMA Gym in Long Island Today
Whether you’re looking to get in shape, learn self-defense, or train like a UFC fighter, ECF Gym is your destination. Come see why we’re the most talked-about MMA gym in Nassau County, many travel from NYC (Queens, Brooklyn) to train before events!
📲 Call now, or stop by the gym in Oceanside, NY by clicking the button below.
Christian DeFiris (ECF CEO)
with DANA WHITE (UFC CEO)
Christian DeFiris (CEO of ECF)
Christian DeFiris is not just a name in the world of combat sports; he’s a force to be reckoned with. With a storied career as a five-time amateur champion in various combat sports disciplines, Christian’s journey in the fight game has been nothing short of extraordinary.-
Contact ECF
Corporate: (516) 341 7555
Address: 2911 Long Beach Road, Oceanside, New York 11572 (Official Headquarters)