Ground Zero is a BJJ school Taught by Prof. Derek Ruffin (Left), Kansas City's longest active national and IBJJF Competitor (IBJJF No-Gi World Champ,Rener Gracie US National Champion, 3x Pan Am medalist, to name a few accolades) former professional MMA fighter and former KCPD SWAT under Prof. Leonardo Pecahna (Right), founder of team Kronos.  Prof. Ruffin has over 30 years of martial arts experience and has a passion for continuously learning and sharing the martial lifestyle.