Bing Pan defeated Robert Witz 7-5 6-3 in the China Masters 4 qualifying round on hard.
Pan B. took it in straight sets.
Bing Pan beat Robert Witz 7-5 6-3. Umpiry, "Bing Pan vs Robert Witz — China Masters 4 Qualifying Round", https://umpiry.com/match/1994-06-13/pan-vs-witz-china-masters-4-qf?utm_source=cite (as of 13 June 1994).