Ground Control Academy is the best martial arts training facility in Maryland and the only Renzo Gracie-certified gym in Baltimore. Here, you can learn Brazilian Jiu-Jitsu, authentic Muay-Thai, elite boxing, and general self-defense from experienced instructors. Owner and Renzo Gracie Black Belt, John Rallo welcomes students of every skill level - from children and beginners to adults and competitors - with a comprehensive schedule of classes and private instruction. Learn more on our website!