Kei Nishikori is a renowned Japanese tennis player, notable for being the first Asian man to reach a major singles final (US Open 2014) and for holding a career-high ranking of world No. 4.
This is based on winning 15 head-to-head matchups with other famous people, but also losing 63 head-to-head matchups.
Most recently Kei Nishikori lost a matchup to Andy Roddick (#881) voted by someone from United States.