DELRAY BEACH Nishikori 3-6, 6-1, 6-4 Blake At 18 years, 1 month, 19 days old, Nishikori is the youngest player to win an ATP title since Lleyton Hewitt (16 years, 10 months, 18 days) in Adelaide on January 11, 1998. Additionally, he is the first Japanese ATP singles titlist since Shuzo Matsuoka won Seoul in April 1992.