Black belt instructor, Spencer Hewitt BJJ is now teaching and mentored under Ricardo Vieira also known as “Ricardinho” or “Rico” Vieira in the jiu jitsu world. He is a 9xWorld BJJ Champion (six times with IBJJF and three times with CBJJO) and one of the top grappling coaches in the world. Ricardo Vieira, together with his brother Leozinho Vieira lead the famous Checkmat academy.