Major Professional Tennis Tournaments Before The Open Era - List of Professional Grand Slam Champions

List of Professional Grand Slam Champions

Notes:

The status of the 1933 French Pro is unclear. In History of the Pro Tennis Wars, by Ray Bowers, there is no mention of a French Pro tournament in 1933. The only professional competition played that year at Roland Garros was a USA-France meeting, September 22–24, in the Davis Cup format. Many sources probably wrongly considered the Tilden-Cochet match as a final of a supposed French Pro.

The status of the Wembley Championships of 1936 and 1938 is unclear. Two of the three major sources for the professional championships list the results as shown. Ray Bowers' History of professional tennis says that neither of these tournaments ever occurred and offers substantiating evidence for his assertion.

The 1937 US Pro was the first pro event open to amateur players and is considered as both the U.S. Pro Tennis Championship and first "true" U.S. Open event.

The US Pro events from 1950–1962, were billed the World Pro Championship with the exception of 1951, where a separate US Pro (at Forest Hills) and World Pro (in Cleveland) were held.

The status of 1953 "French Pro" is unclear. Joe McCauley included this tournament in his list of French Pro tournaments but he prefaced in his book "History of Professional Tennis" that it may not have been considered at the time as an official French Pro.