STAY FLY! MUAY THAI in Philadelphia | Stay Fly Muay Thai

Philadelphia's Muay Thai Mecca

Welcome to Stay Fly Muay Thai, the Philadelphia Muay Thai Mecca and home of Justin "The Purple People Eater" Greskiewicz. The awesomest place to get awesome. Awesome.


My ultimate goal is to fight professionally and make a career & life out of Muay Thai. I am quite injury prone so I have fallen into a sort of assistant coach role at the gym. I absolutely love this role. I’m probably one of the few fighters that likes holding pads more than hitting them. To me, Muay Thai is a form of chess, it’s a game where you out-work and out-smart your opponent, and I study it as such. I want to continue absorbing knowledge about the sport, continue fighting, and continue helping my team both in the gym and in their corners.

In college, I started training the standard disciplines of MMA up at a great gym in Boston called Wai Kru. I saw the Muay Thai classes and immediately fell in love with the sport. The respect shown by the crowds and between opponents is unparalleled in other contact sports. It’s a beautiful culture.

Stay Fly Muay Thai is an amazing place. We are a fight gym, our goal is to teach authentic, effective Muay Thai that will win you fights. However, we treat everyone equally and welcome all students into our big, goofy family. It’s extremely technique-based, and I am proud to be part of a fight team that shows so well.

In a broader sense, the gym, in my mind, is the way America should look. We have Catholic priests training next to crust-punk movers—teenagers from rough urban neighborhoods hitting pads with tech salesmen. We vary in color, class, orientation, and believes. It’s a tight knit community that does two things really, really well: train Muay Thai and eat food. Dream community, right?