No medals were awarded as this was not an official Olympic event. Graf's schedule was closely controlled by her father, who limited her play so that she would not burn out. In 1985, for instance, she played only ten 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. Peter also kept a tight rein on Graf's personal life. Social invitations on the tour were often declined as Graf's focus was kept on practicing and match play. Working with her father and then-coach Pavel Složil, Graf typically practiced for up to four hours a day, often heading straight from airports to practice courts. This narrow focus meant that Graf, already shy and retiring by nature, made few friends on the tour in her early years, but it led to a steady improvement in her play. In 1985 and early 1986, Graf emerged as the top challenger to the dominance of Martina Navratilova and Chris Evert. During that period, she lost six times to Evert and three times to Navratilova, all in straight sets. She did not win a tournament but consistently reached tournament finals, semifinals and quarterfinals, with the highlight being her semifinal loss to Navratilova at the US Open. On 13 April 1986, Graf won her first WTA tournament and beat Evert for the first time in the final of the Family Circle Cup in Hilton Head, South Carolina. (She never lost to Evert again, beating her six more times over the next three and a half years.) Graf then won her next three tournaments at Amelia Island, Charleston, and Berlin, culminating in a 6–2, 6–3 defeat of Navratilova in the final of the latter. 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. The match was played over two days with Navratilova finally winning after saving three match points 6–1, 6–7, 7–6. Graf then won three consecutive indoor titles at Tokyo, Zurich, and Brighton, before once again contending with Navratilova at the season-ending Virginia Slims Championships in New York.