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! Business Hours: Mon: 10:00 - 13:00, 17:00 - 22:00 Tue: 06:00 - 07:00, 17:00 - 22:00 Wed: 05:00 - 22:00 Thu: 06:00 - 07:00, 17:00 - 22:00 Fri: 10:00 - 13:00 Sat: 09:00 - 13:00 Sun: 11:00 - 12:30