KristÃ½na PlÃÅ¡kovÃ¡ (Czech pronunciation: [ËˆkrÉªstiËna ËˆpliËÊƒkovaË]; born 21 March 1992) is a Czech professional tennis player. PlÃÅ¡kovÃ¡ has won one singles and three doubles titles on the WTA Tour, as well as nine singles and eight doubles titles on the ITF Women's Circuit. On 31 July 2017, she reached her career-high singles ranking of world No. 35. On 15 September 2014, she peaked at No. 51 in the doubles rankings. PlÃÅ¡kovÃ¡ won the 2010 Wimbledon Championships â€“ Girls' Singles tournament, beating Sachie Ishizu in straight sets; She currently holds the record for the most aces (31) in a match on the WTA Tour, which she set in a second round match against Monica Puig at the 2016 Australian Open.