Please answer the following question: Facts:   - usopenmixedresult: 3r -lrb- 1984 -rrb-    - wimbledonmixedresult: 3r -lrb- 1982 -rrb-    - usopendoublesresult: qf -lrb- 1981 -rrb-    - wimbledonresult: sf -lrb- 1983 -rrb-    - height: 1.55    - plays: right-handed    - usopenresult: 3r -lrb- 1984 -rrb-    - australianopendoublesresult: 2r -lrb- 1982 , 1983 , 1984 -rrb-    - country: rsa 1928 south africa    - frenchopenresult: 4r -lrb- 1982 -rrb-    - wimbledondoublesresult: qf -lrb- 1982 , 1985 , 1986 -rrb-      - birth date: 18 december 1956    - frenchopendoublesresult: sf -lrb- 1982 -rrb-    - name: yvonne vermaak    - birth place: port elizabeth , south africa   Based on these bullet points, write a short biography describing the life of yvonne vermaak .
A:
yvonne vermaak is a former tour tennis player who represented her native south africa .vermaak 's best result was defeating virginia wade in the quarter-finals of the 1983 wimbledon championships .late in her playing career , vermaak became an american citizen .vermaak played usta master 's tennis .representing illinois , she was the 1992 singles champion of the usta national women 's indoor championships in homewood for 35 's .in 1993 , yvonne vermaak was the 25 's singles champion , and again she was the 25 's singles champion in 1994 .in 1995 , vermaak moved on to doubles , winning the 25 's and 35 's doubles with her partner ann kiyomura-hayashi of california .the 1995 championships was vermaak 's last usta championships win .