Wilson Don Budge Pro
(documented or estimated)
Don Budge Pro
American John Donald Budge (June 13, 1915 – January 26, 2000) is most famous as the first tennis player — male or female, and still the only American male — to win the Grand Slam, and to win all four Grand Slam events consecutively overall. Budge is considered to have one of the best backhands backhands in the history of tennis, with most observers rating it better than that of later player Ken Rosewall.
Budge was the world Number 1 amateur in 1937 and 1938 and world Number 1 professional in 1939, 1940 and 1942.