Which is the player in the world who had break his record 9 times in olympic games which is played on grass?

The player you're referring to is Serena Williams, who has broken records multiple times in her Olympic appearances, particularly in tennis, which is played on grass. She has won four Olympic gold medals, and her achievements in the sport have established her as one of the greatest tennis players of all time. Williams has made significant contributions to the history of tennis, both in the Olympics and on the professional circuit.