Daniel Nguyen defeated Chan Yeong Oh 2-6 6-2 6-4 in the Korea F2 qualifying round on hard.
Nguyen D. came through in three sets.
Daniel Nguyen beat Chan Yeong Oh 2-6 6-2 6-4. Umpiry, "Daniel Nguyen vs Chan Yeong Oh — Korea F2 Qualifying Round", https://umpiry.com/match/2017-06-05/nguyen-vs-oh-korea-f2-qf?utm_source=cite (as of 5 June 2017).