Djokovic won the French and Australian Opens in 2016, as well as Wimbledon and the U.S. Open in in 2015 to become the first man to win four-straight Grand Slams since 1969. In addition, Djokovic became the all-time leading prize money winner on the ATP tour.
Ko won two LPGA majors (the 2015 Evian Championship and 2016 ANA Inspiration) as the no. 1 player in the world. Ko also became the youngest player to ever be ranked no. 1 as well as the youngest to win an LPGA major.