Sho Katayama defeated Oh Hee Kwon 6-3 6-3 in the Korea F6 round of 16 on clay. The upset overturned the form book — Oh Hee Kwon came in leading the head-to-head 1–0. Sho Katayama claimed a first win over Oh Hee Kwon in two meetings, levelling the head-to-head at 1–1.
Katayama S. took it in straight sets.
Clay: Katayama S. leads 1–0 · Hard: Kwon O. leads 1–0
Sho Katayama beat Oh Hee Kwon 6-3 6-3. Umpiry, "Sho Katayama vs Oh Hee Kwon — Korea F6 Round of 16", https://umpiry.com/match/2016-08-22/katayama-vs-kwon-korea-f6-r16?utm_source=cite (as of 22 August 2016).