Christopher Rungkat defeated Seong Chan Hong 4-6 6-2 6-3 in the Vietnam F2 quarter-final on hard. The upset overturned the form book — Seong Chan Hong came in leading the head-to-head 1–0. Christopher Rungkat claimed a first win over Seong Chan Hong in two meetings, levelling the head-to-head at 1–1.
Rungkat C. came through in three sets.
Christopher Rungkat beat Seong Chan Hong 4-6 6-2 6-3. Umpiry, "Christopher Rungkat vs Seong Chan Hong — Vietnam F2 Quarter-final", https://umpiry.com/match/2016-08-05/hong-vs-rungkat-vietnam-f2-qf?utm_source=cite (as of 5 August 2016).