Kayla Day advanced when Marie Bouzkova retired 6-7 6-3 2-0 in the Chicago qualifying round of 32.
Day K. advanced when Bouzkova M. retired.
Kayla Day beat Marie Bouzkova 6-7(2) 6-3 2-0 after Marie Bouzkova retired. Umpiry, "Kayla Day vs Marie Bouzkova — Chicago Qualifying Round of 32", https://umpiry.com/match/2018-09-02/bouzkova-vs-day-chicago-q32?utm_source=cite (as of 2 September 2018).