Seong Gook Oh defeated Dong Hak Sin 6-2 2-6 6-4 in the Korea F4 qualifying round of 32 on hard.
Gook Oh S. came through in three sets.
Seong Gook Oh beat Dong Hak Sin 6-2 2-6 6-4. Umpiry, "Seong Gook Oh vs Dong Hak Sin — Korea F4 Qualifying Round of 32", https://umpiry.com/match/2014-06-02/oh-vs-sin-korea-f4-q32?utm_source=cite (as of 2 June 2014).