Who has won a calendar Grand Slam?
Mia Lopez
Updated on March 09, 2026
Calendar Year Grand Slam (four majors in one calendar year)
- Maureen Connolly ( 1953)
- Margaret Smith Court ( 1970)
- Steffi Graf ( 1988) Note: Graf also won the Olympic gold medal in 1988.
Who has won all 4 Grand Slams in one calendar year?
#1 Steffi Graf, 19881988 was also her golden year, as she completed a Super Slam, the only player to have achieved that in a period of 12 months, winning all four Grand Slam Titles, the Olympic Gold Medal and the WTA Tour Championships.