Seong Chan Hong defeated Yosuke Watanuki 7-5 6-4 in the Japan F4 qualifying round on hard.
Hong S. took it in straight sets.
Seong Chan Hong beat Yosuke Watanuki 7-5 6-4. Umpiry, "Seong Chan Hong vs Yosuke Watanuki — Japan F4 Qualifying Round", https://umpiry.com/match/2017-03-27/hong-vs-watanuki-japan-f4-qf?utm_source=cite (as of 27 March 2017).