However, in the Federation Cup final in Vancouver, Canada, three weeks later, she defeated Evert easily 6–2, 6–1.
The US Open ended anti-climactically as Navratilova defeated Graf in the final 7–6, 6–1.
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.
On August 17, after defeating Evert in a straight set final in the Virginia Slims of Los Angeles, Graf overtook Navratilova for the world No.
Notable features of Graf's game were her versatility across all playing surfaces, footwork and her powerful forehand drive. She is the only singles player (male or female) to have achieved a Grand Slam since hard court was introduced as a surface at the US Open in 1978.
She won six French Open singles titles (second to Evert), seven Wimbledon singles titles, four Australian Open titles, and five U. Consequently, Graf's Grand Slam was achieved on grass, clay, and hard court while the previous five Grand Slams were decided on only grass and clay.
Graf reached thirteen consecutive major singles finals, from the 1987 French Open through to the 1990 French Open, winning nine of them.
Her 22 singles titles put her second on the list of major wins in the female competition since the introduction of the Open Era in 1968 and is third all-time behind Margaret Court (24) and Serena Williams (23).
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.