Makoto Ochi defeated Chan Yeong Oh 6-0 6-2 in the Korea F1 qualifying round on hard. The result followed the form book — Makoto Ochi came in leading the head-to-head 1–0. Makoto Ochi extended the head-to-head to 2–0.
Ochi M. took it in straight sets.
Makoto Ochi beat Chan Yeong Oh 6-0 6-2. Umpiry, "Makoto Ochi vs Chan Yeong Oh — Korea F1 Qualifying Round", https://umpiry.com/match/2017-05-29/ochi-vs-oh-korea-f1-qf?utm_source=cite (as of 29 May 2017).