Hyeon Chung defeated Toshihide Matsui 3-6 6-4 6-3 in the Korea F2 semi-final on hard.
Chung H. came through in three sets.
Hyeon Chung beat Toshihide Matsui 3-6 6-4 6-3. Umpiry, "Hyeon Chung vs Toshihide Matsui — Korea F2 Semi-final", https://umpiry.com/match/2013-05-06/chung-vs-matsui-korea-f2-sf?utm_source=cite (as of 6 May 2013).