Martina Navratilova age 34, Navratilova defeated Graf the last time they played in a major in the semifinals of the 1991 US Open 7–6(2), 6–7(6), 6–4, to end their Grand Slam rivalry 5-4 up. It is worthy to note that all 4 of Graf's Grand Slam victories over Navratilova came in the finals of a Slam. This is reflected in the Grand Slams Finals chart below. Navratilova's final major singles triumph was in 1990. In the final, the 33-year-old Navratilova swept Zina Garrison 6–4, 6–1 to claim an all-time record ninth Wimbledon singles crown. Though that was her last major singles title,
Martina Navratilova on clay at Amelia Island, 6–0, 6–0. It was Navratilova's only professional double bagel loss (one she later avenged with a crushing 6–2, 6–0 defeat of Evert in the finals of the same Amelia Island event in 1984). It was at this point that Navratilova began working with Nancy Lieberman to improve her fitness and toughen her mental approach to better compete with Evert and fulfil her true potential. In 1981, Navratilova won her third major singles title by defeating Evert in the final of the Australian Open. Navratilova also defeated Evert to reach the final of the US Open,