Yuchen Wu (2000) advanced when Jiaqi Duan retired 6-3 in the China F9 qualifying round of 64.
Wu (2000) Y. advanced when Duan J. retired.
Yuchen Wu (2000) beat Jiaqi Duan 6-3 after Jiaqi Duan retired. Umpiry, "Yuchen Wu (2000) vs Jiaqi Duan — China F9 Qualifying Round of 64", https://umpiry.com/match/2016-05-30/2000-vs-duan-china-f9-q64?utm_source=cite (as of 30 May 2016).