Yuichi Ito defeated Issei Okamura 6-2 4-6 6-4 in the Vietnam F4 qualifying round on hard. Yuichi Ito moved ahead in the head-to-head, 2–1.
Ito Y. came through in three sets.
Yuichi Ito beat Issei Okamura 6-2 4-6 6-4. Umpiry, "Yuichi Ito vs Issei Okamura — Vietnam F4 Qualifying Round", https://umpiry.com/match/2016-09-12/ito-vs-okamura-vietnam-f4-qf?utm_source=cite (as of 12 September 2016).