Rod Laver won eight Pro Slam titles over 7 years.
Rod Laver . Laver 's 200 singles titles are the most in tennis history , and he holds the all-time male singles records of 22 titles in a single season ( 1962 ) and seven consecutive years ( 1964 -- 70 ) winning at least 10 titles per season . He also won eight Pro Slam titles , including the calendar year Pro `` Grand Slam '' in 1967 , and contributed to five Davis Cup titles for Australia during an age when Davis Cup was deemed as significant as the Grand Slams .