Gengo Kikuchi defeated Naoto Kai 6-2 7-6 in the Japan F4 qualifying round of 64 on hard.
Kikuchi G. took it in straight sets.
Gengo Kikuchi beat Naoto Kai 6-2 7-6(1). Umpiry, "Gengo Kikuchi vs Naoto Kai — Japan F4 Qualifying Round of 64", https://umpiry.com/match/2016-03-28/kai-vs-kikuchi-japan-f4-q64?utm_source=cite (as of 28 March 2016).