Graf played in her first professional tournament in October 1982 at Stuttgart, Germany. In August as a 15-year-old (and youngest entrant) representing West Germany, she won the tennis demonstration event at the 1984 Olympic Games in Los Angeles.She lost her first round match 6–4, 6–0 to Tracy Austin, a two-time US Open champion and former World No. (Twelve years later, Graf defeated Austin 6–0, 6–0 during a second round match at the Evert Cup in Indian Wells, California, which was their second and last match against each other.) At the start of her first full professional year in 1983, Graf was 13 years old and ranked World No. She won no titles during the next three years, but her ranking climbed steadily to World No. No medals were awarded as this was not an official Olympic event.In 1985, for instance, she played only 10 events leading up to the US Open, whereas another up-and-coming star, Gabriela Sabatini of Argentina, who was a year younger than Graf, played 21.
She reached a total of 31 Grand Slam singles finals.
Graf is regarded by many to be the greatest female tennis player of all time.
Navratilova included Graf on her list of great players.
In 1999 Billie Jean King said "Steffi is definitely the greatest women's tennis player of all time". 1 men's tennis player Andre Agassi in October 2001.
Graf retired in 1999 while she was ranked World No. The couple have two children – Jaden Gil and Jaz Elle.
Graf was inducted into the Tennis Hall of Fame in 2004.Stefanie Graf was born on 14 June 1969, in Mannheim, Baden-Württemberg, West Germany, to Heidi Schalk and Peter Graf (18 June 1938 − 30 November 2013), a car and insurance salesman. She began practicing on a court at the age of four and played in her first tournament at five.She soon began winning junior tournaments with regularity, and in 1982 she won the European Championships 12s and 18s. In 1984, she first gained international attention when she almost upset the tenth seed, Jo Durie of the United Kingdom, in a fourth round Centre Court match at Wimbledon.Her 22 singles titles, tied with Serena Williams, marks the joint record for most Major wins by a tennis player (male or female) since the introduction of the Open Era in 1968 and is second all-time behind Margaret Court (24).In 1988, she became the first and only tennis player (male or female) to achieve the Golden Slam by winning all four Grand Slam singles titles and the Olympic gold medal in the same calendar year, furthermore, she is the only tennis player to have won each Grand Slam event at least 4 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).