Stay Fly Muay Thai

Stay Fly is the premier place to train Muay Thai/kickboxing in Philly. Nobody has more experience and knowledge of the sport nearby than Justin Greskiewicz. Whether you want to come for fitness and fun or you are an aspiring fighter, the environment and facilities at Stay Fly are top notch.

I really enjoy to come and practice kickboxing at this place. Classes last for 45 min, the coach is chill and supportive. The people who come are cool. Highly recommend you to join the gym.

This gym is a gem for anyone looking to train Muay Thai, whether you’re a complete beginner or an experienced martial artist. The head coach, Justin Greskiewicz, is incredibly knowledgeable, with years of experience as a professional Muay Thai fighter, and it shows in the quality of teaching. This gym accommodates all skill levels and is always welcoming and supportive. The environment is encouraging, fostering a real sense of community among members and the gym itself is clean, well-organized, and runs efficiently, making it a pleasure to train here. If you’re looking for authentic Muay Thai training in a welcoming atmosphere, Stay Fly Muay Thai is the place to be. Highly recommend!

You will not find a better or more experienced coach in Philly I have been training with Stay Fly Muay Thai now for 2 years and I can say I hve not had a bad experience with Justin as my coach nor with the other students that attend. Justin is an extremely qualified coach with nearly 20 years of experience and 100 professional fights. I have witnessed him teach classes of 30 people and I have had private lessons as well. No matter how big or small a class, the level of quality does not change. Justin has taught me since day one and I will never go to another gym. Justin teaches you all the fundamentals from punching, kicking kneeing, and elbowing to fast pace combos. He always explains the process to achieve perfect form and takes time to talk about all the details. Whether you are looking to get fit, train for a fight or start a new hobby, this is the place to go. Justin focuses on all his students and caters to their needs. He can be sensative or stern depending on what you want out of the class. He will always push you to the amount that you are comfortable with. I have followed this coach to three gyms and would gladly follow him to a fourth. The current gym still needs some renovation but that does not take away from the passion Justin or his students have for Muay Thai.

Excellent gym, excellent instruction by an American Muay Thai legend. Highly recommend.