Victoria Azarenka is a Belarusian professional tennis player and former world No. 1 in singles. She has won two Grand Slam titles at the Australian Open and holds numerous WTA titles. Azarenka also earned a bronze medal in singles and a gold medal in mixed doubles at the 2012 London Olympics.
This is based on winning 4 head-to-head matchups with other famous people, but also losing 23 head-to-head matchups.
Most recently Victoria Azarenka lost a matchup to John Cusack (#526) voted by someone from United Kingdom.