Seong Chan Hong advanced when Oh Hee Kwon retired 7-6 3-2 in the Korea F2 round of 16.
Hong S. advanced when Kwon O. retired.
Seong Chan Hong beat Oh Hee Kwon 7-6(5) 3-2 after Oh Hee Kwon retired. Umpiry, "Seong Chan Hong vs Oh Hee Kwon — Korea F2 Round of 16", https://umpiry.com/match/2017-06-05/hong-vs-kwon-korea-f2-r16?utm_source=cite (as of 5 June 2017).