Yi Miao Zhou defeated Andrea Petkovic 6-7 7-6 6-4 in the Roland Garros qualifying round of 64 on clay.
Miao Zhou Y. came through in three sets.
Yi Miao Zhou beat Andrea Petkovic 6-7(1) 7-6(2) 6-4. Umpiry, "Yi Miao Zhou vs Andrea Petkovic — Roland Garros Qualifying Round of 64", https://umpiry.com/match/2013-05-23/petkovic-vs-zhou-roland-garros-q64?utm_source=cite (as of 23 May 2013).