Hiromasa Oku defeated San Hui Sin 6-1 6-1 in the Korea F4 round of 32 on hard.
Oku H. took it in straight sets.
Hiromasa Oku beat San Hui Sin 6-1 6-1. Umpiry, "Hiromasa Oku vs San Hui Sin — Korea F4 Round of 32", https://umpiry.com/match/2015-08-17/oku-vs-sin-korea-f4-r32?utm_source=cite (as of 17 August 2015).