2 grand slams (as on 5 July 2010)
4 grand slams
Through the 2013 season, there were 6452 grand slams hit in baseball history. The most grand slams in a season happened in the year 2000 when 176 grand slams were hit.
No woman has won all 4 grand slams in one year but Rod Laver did twice. Sorry to Disagree but Steffi Graph did a Golden Slam in 1988, All 4 Grand Slams and an Olympic gold medal.
Maureen Connolly of USA won all the 4 Grand Slams in a year in 1953.
That was 1988.
This year, 2012. Australian Open- Novak Djokovic Roland Garros - Rafael Nadal Wimbledon - Federer US Open - Andy Murray
austrailin openwimblondonus openfrench open
six. the answer is six -Amy
Arthur Ashe won 3 Grand Slams