Sung Jun Park defeated Sung Hyuk Yu 7-6 6-1 in the Korea F2 qualifying round of 64 on hard.
Park S. took it in straight sets.
Sung Jun Park beat Sung Hyuk Yu 7-6(1) 6-1. Umpiry, "Sung Jun Park vs Sung Hyuk Yu — Korea F2 Qualifying Round of 64", https://umpiry.com/match/2013-05-06/park-vs-yu-korea-f2-q64?utm_source=cite (as of 6 May 2013).