* The (10) category includes countries as listed by the PGA (i.e., not all may be considered as Independent States politically). ** The (9) and (7) categories refer to Official World Golf Rankings since 1986. *** The (4) and (2) category "Majors" are The Masters, The (British) Open, The U.S. Open, and the PGA Championships (including "match-play" format 1916-1958). . . . All players in this game competed professionally during at least a portion of "The Masters Era" (1934 to present day).