Roger Gracie is among the most decorated gi competitors ever: ten IBJJF black-belt Worlds titles from 2004–2010, including three absolute golds, plus 2005 ADCC weight-and-absolute double gold on submissions. His game made mount, closed guard, and cross-collar chokes work at the highest level without chasing novelty.
He later won the inaugural ONE light heavyweight title and retired from both MMA and BJJ competition in 2017 after submitting Marcus “Buchecha” Almeida. Fundamentals readers should pair this profile with mount, cross-collar choke, and closed-guard pages.