Silvia Soler Espinosa defeated Kai Chen Chang 6-2 7-5 in the Roland Garros qualifying round of 64 on clay. The upset overturned the form book — Kai Chen Chang came in defending last year's round of 128.
Soler Espinosa S. took it in straight sets.
Silvia Soler Espinosa beat Kai Chen Chang 6-2 7-5. Umpiry, "Silvia Soler Espinosa vs Kai Chen Chang — Roland Garros Qualifying Round of 64", https://umpiry.com/match/2011-05-19/chang-vs-espinosa-roland-garros-q64?utm_source=cite (as of 19 May 2011).