Denny "300" Prokopos will be a part of Jiu Jitsu history for a long time. He is the first person awarded a Black belt by Eddie Bravo. When Eddie first started teaching the Rubber Guard people were writing it off. They said it was not very effective or practical. Nevertheless Eddie Bravo won over a lot of students across the planet. Many are highly skilled. Many medal in various tournaments. Yet one proud Greek student, Denny "300" Prokopos soaked up the game at an insane pace. He moved ahead with a work ethic thats hard to match.