Lennox Lewis, the only three-time lineal heavyweight champion in boxing history, has previously trained with Jeremy Williams, a combat sports practitioner who holds a black belt in judo. While Williams is recognized for his expertise in grappling, his work with Lewis focused specifically on boxing technique and striking.
The Training Dynamic Between Lennox Lewis and Jeremy Williams
Lennox Lewis, who retired undefeated in his final 25 fights, spent time training with Jeremy Williams to refine specific elements of his boxing game. Despite Williams’ high-level credentials in judo, the collaboration centered on boxing drills and striking mechanics rather than grappling or throwing techniques.

Individuals who have trained under Williams describe him as a professional and approachable coach. The focus of these sessions was to maintain the precision and power that defined Lewis’ tenure as the undisputed heavyweight champion of the world.
Jeremy Williams’ Combat Sports Background
Jeremy Williams operates at the intersection of two distinct combat disciplines: boxing and judo. As a judo black belt, Williams possesses an advanced understanding of leverage, balance, and center-of-gravity manipulation. However, in the context of professional boxing, these skills are secondary to the requirements of the ring.
The distinction is critical for fans of combat sports: while judo is a grappling art focused on throws and submissions, boxing is a striking sport. Williams’ ability to coach a champion like Lewis suggests a versatility in training methods, bridging the gap between the technical requirements of the Olympic-style judo he masters and the professional boxing standards Lewis maintained throughout his career.
Lennox Lewis’ Legacy in the Heavyweight Division
To understand why a fighter of Lewis’ caliber would seek diverse training inputs, one must look at his career trajectory. Lewis is widely regarded as one of the greatest heavyweights of all time, known for his reach, jab, and tactical intelligence. He held the WBC, IBF, and WBA titles, and his victory over Evander Holyfield in 2000 unified the heavyweight championships for the first time since 1988.

Throughout his career, Lewis was known for evolving his style to counter specific opponents. This commitment to technical refinement often involved working with a variety of trainers and sparring partners to ensure no gaps remained in his defensive or offensive repertoire.
Comparing Striking and Grappling Disciplines
The interaction between a judo expert and a heavyweight boxer highlights the difference between the two disciplines. In boxing, the goal is to deliver strikes while avoiding being hit. In judo, the objective is to use an opponent’s momentum to execute a throw or a pin.
While Williams’ black belt indicates a mastery of the latter, his work with Lewis demonstrates the application of the former. This cross-training environment is common in modern mixed martial arts (MMA), but for a pure boxer like Lewis, the value lay in the boxing-specific expertise Williams provided during their sessions.
For those following the current state of heavyweight boxing or the evolution of combat sports training, the collaboration between a technician like Williams and a legend like Lewis serves as a blueprint for professional maintenance and skill acquisition.
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