Dong Hak Sin defeated Jae Won Choi 6-4 7-5 in the Korea F8 qualifying round of 64 on clay. The upset overturned the form book — Jae Won Choi came in leading the head-to-head 1–0. Dong Hak Sin claimed a first win over Jae Won Choi in two meetings, levelling the head-to-head at 1–1.
Hak Sin D. took it in straight sets.
Clay: Hak Sin D. leads 1–0 · Hard: Won Choi J. leads 1–0
Dong Hak Sin beat Jae Won Choi 6-4 7-5. Umpiry, "Dong Hak Sin vs Jae Won Choi — Korea F8 Qualifying Round of 64", https://umpiry.com/match/2016-09-05/choi-vs-sin-korea-f8-q64?utm_source=cite (as of 5 September 2016).