Most tennis Grand Slams (male)

According to Official Guinness Records,

The most times a male tennis player has completed the Grand Slam - winning the Australian Open, the French Open, Wimbledon (UK) and the US Open singles titles in the same calendar year - is two, by Rod Laver (Australia) in 1962 and 1969.
Laver completed his second Grand Slam by beating Tony Roche (Australia) in four sets in the 1969 US Open final.

For a complete list of 1969 records, please visit 1969 Guinness Records in United States.

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