The first fully successful fighter under Queensberry rules, Corbett was one of the most analytic boxers in the history of the sport. He was a master of defensive tactics rather than a heavy puncher. His attack consisted of sharp quick punches that were timed to keep his opponent off balance. Corbett's tasteful dress and personality made him popular and contributed much to public acceptance of prizefighting. He retired from the ring in 1903. Having acquired the theatrical promoter William A. Brady (Brady, William A) as his ring manager, he also appeared in leading roles in several plays, including George Bernard Shaw (Shaw, George Bernard)'s Cashel Byron's Profession, and was considered a competent actor. Corbett's autobiography, The Roar of the Crowd (1925), was produced as the film Gentleman Jim (1942), with Erroll Flynn in the title role. Corbett was inducted into Ring magazine's Boxing Hall of Fame in 1954.