- Category : Tennis Player
- Type : GE
- Profile : 2/4 - Hermit / Opportunist
- Definition : Split - Small (41,49)
- Incarnation Cross : RAX The Four Ways 2
John Albert "Jack" Kramer was an American tennis player of the 1940s and 1950s. A World No. 1 player for a number of years, and one of the most important people in the establishment of modern men's "Open"-era tennis, he was the leading promoter of professional tennis tours in the 1950s and 1960s.