Keenan Cornelius — BJJ World Champion & Elite Grappler

Keenan Cornelius began training Brazilian Jiu-Jitsu and quickly demonstrated natural talent for the sport. Born in 1993, they progressed through the belt ranks at an accelerated pace, earning their black belt and immediately competing at the highest levels. Their affiliation with Legion AJJ (founder) provided world-class training partners and coaching that accelerated their development.



On the competition circuit, Keenan Cornelius accumulated title after title: ADCC Finalist 2013, 2015; IBJJF World Champion (brown belt); Pioneer of lapel guard systems. Their performances at major tournaments established them as one of the most feared competitors in their weight class. Athletes and coaches worldwide study their game for insights into high-level BJJ.



Beyond competition, Keenan Cornelius has contributed to the BJJ community through teaching, instructionals, and demonstrating that technical mastery can prevail over physical advantages. Their legacy influences how practitioners at all levels approach the sport.



Today, Keenan Cornelius continues to train, teach, and compete, passing on the lessons of their championship career to the next generation of BJJ athletes.

Keenan Cornelius's game is defined by excellence in worm guard, lapel guard, triangle choke, armbar. Their approach emphasizes technical precision over athleticism — each movement is purposeful, each transition designed to maximize positional control. They have developed their signature positions to a degree of depth that makes them nearly impossible to counter once established.

What makes Keenan's style particularly effective is the seamless connection between offense and defense. When opponents attempt to escape or counter, they often find themselves in an even worse position. This quality — turning defense into offense — is the hallmark of elite BJJ.

Keenan Cornelius's most iconic technique is the worm guard. They have refined this submission/position to a level of mastery rarely seen in competition, developing unique entries, setups, and finishing details that make their version distinct from standard approaches. Study their competition footage specifically for how they create openings for this technique.

Studying Keenan Cornelius's game offers practitioners insights into elite-level BJJ mechanics. Their worm guard and guard system demonstrate how technical excellence creates opportunities that pure athleticism cannot replicate. Practitioners at the intermediate-to-advanced level will find studying Keenan's competition footage particularly valuable for understanding how to integrate multiple positions into a cohesive game. Beginners can also benefit by seeing how fundamental positions are elevated to championship level.

• Multiple world championship victories in worm guard, lapel guard, establishing a legacy as one of the most decorated competitors in BJJ history.
• Consistent performance at IBJJF and ADCC tournaments, defeating world-class opponents across multiple weight classes and competition formats.
• Title victories: ADCC Finalist 2013, 2015; IBJJF World Champion (brown belt) — performances that changed how the BJJ community viewed what was possible in their weight class.
• Influenced a generation of BJJ practitioners through competition footage, instructionals, and teaching — the worm guard system they developed is now studied worldwide.

• Study the worm guard entry: Focus on how Keenan creates the openings for their signature technique. The setup is often more important than the finish itself.
• Analyze their guard retention: Elite competitors like Keenan have exceptional guard retention mechanics. Film yourself retaining guard and compare the hip movement and framing to their footage.
• Work on lapel guard: This secondary technique connects directly to their primary game and creates multi-directional threats that are hard to defend.
• Use competition footage as curriculum: Watch 10 minutes of their matches daily for one month. Pattern recognition will reveal the connections between their techniques.