Graf had a win-loss record of 75-2 for a 97.4 winning percentage in 1987, both losses coming to Navratilova as they split the four matches they played during the year.
Furthermore, she is the only tennis player to have won each Grand Slam event at least four times. 1 by the Women's Tennis Association (WTA) for a record 377 total weeks—the longest period for which any player, male or female, has held the number-one ranking since the WTA and the Association of Tennis Professionals began issuing rankings.
She won 107 singles titles, which ranks her third on the WTA's all-time list after Martina Navratilova (167 titles) and Chris Evert (157 titles).
Illness caused her to miss Wimbledon, and an accident where she broke a toe several weeks later also curtailed her play.
She returned to win a small tournament at Mahwah just before the US Open where, in one of the most anticipated matches of the year, she encountered Navratilova in a semifinal.
Graf is regarded by some to be the greatest female tennis player of all time.