Andrew Schafer defeated Zhizhen Zhang 6-1 2-6 6-3 in the USA F3 qualifying round of 128 on clay.
Schafer A. came through in three sets.
Andrew Schafer beat Zhizhen Zhang 6-1 2-6 6-3. Umpiry, "Andrew Schafer vs Zhizhen Zhang — USA F3 Qualifying Round of 128", https://umpiry.com/match/2013-01-21/schafer-vs-zhang-usa-f3-q128?utm_source=cite (as of 21 January 2013).