There were five years in which Steffi Graf won three grand slams.
Steffi Graf . She and Margaret Court are the only players , male or female , to win three grand slams in a calendar year five times ( 1988 , 1989 , 1993 , 1995 and 1996 ) . Graf reached thirteen consecutive Grand Slam singles finals , from the 1987 French Open through to the 1990 French Open , winning nine of them .