Bowen Ouyang defeated Toshihide Matsui 7-6 6-3 in the China F7 qualifying round on hard. The upset overturned the form book — Toshihide Matsui came in leading the head-to-head 1–0, but Bowen Ouyang had been the form player, winning 5 of their last 10 on hard. Bowen Ouyang claimed a first win over Toshihide Matsui in two meetings, levelling the head-to-head at 1–1.
Ouyang B. took it in straight sets.
Bowen Ouyang beat Toshihide Matsui 7-6(1) 6-3. Umpiry, "Bowen Ouyang vs Toshihide Matsui — China F7 Qualifying Round", https://umpiry.com/match/2013-08-12/matsui-vs-ouyang-china-f7-qf?utm_source=cite (as of 12 August 2013).