Issei Okamura defeated Chan Yeong Oh 7-6 6-3 in the Vietnam F4 round of 32 on hard.
Okamura I. took it in straight sets.
Issei Okamura beat Chan Yeong Oh 7-6(6) 6-3. Umpiry, "Issei Okamura vs Chan Yeong Oh — Vietnam F4 Round of 32", https://umpiry.com/match/2016-09-12/oh-vs-okamura-vietnam-f4-r32?utm_source=cite (as of 12 September 2016).