Oh Hee Kwon defeated Yuuya Kibi 6-1 6-4 in the Japan F9 round of 32 on clay. The upset overturned the form book — Yuuya Kibi came in leading the head-to-head 1–0. Oh Hee Kwon claimed a first win over Yuuya Kibi in two meetings, levelling the head-to-head at 1–1.
Kwon O. took it in straight sets.
Oh Hee Kwon beat Yuuya Kibi 6-1 6-4. Umpiry, "Oh Hee Kwon vs Yuuya Kibi — Japan F9 Round of 32", https://umpiry.com/match/2009-10-19/kibi-vs-kwon-japan-f9-r32?utm_source=cite (as of 19 October 2009).