Jack Kramer

Jack Kramer endorsed the Kramer Autograph tennis racket, manufactured by Wilson Sporting Goods, which became one of the best-selling rackets of the wooden era. Its design emphasized control and feel, and many professionals and serious amateurs used it through the 1950s and 1960s.

Kramer was a leading advocate for professionalism in tennis and established a professional tour in the late 1940s that offered top players financial opportunities previously unavailable in the amateur game. His pro tour, which featured stars like Pancho Gonzales, demonstrated the viability of professional tennis and helped build momentum that culminated in the Open Era beginning in 1968.

Kramer won the Wimbledon men's singles title in 1947 and the US Championships (now US Open) men's singles title in 1946 and 1947. He also won multiple Grand Slam doubles titles, including Wimbledon doubles championships, before turning professional in 1947.

Yes, Kramer became deeply involved in tennis promotion and was a key figure behind the establishment of the Grand Prix tennis circuit in 1970, which helped structure the professional tour system. He also worked as a television commentator and remained an influential voice in the sport's governance and commercial development.