Hanwen Li advanced when Simon Anthony Ivanov retired 6-3 4-4 in the M15 Sofia 1 round of 16.
Li H. advanced when Ivanov S. retired.
Hanwen Li beat Simon Anthony Ivanov 6-3 4-4 after Simon Anthony Ivanov retired. Umpiry, "Hanwen Li vs Simon Anthony Ivanov — M15 Sofia 1 Round of 16", https://umpiry.com/match/2021-07-08/ivanov-vs-li-m15-sofia-1-r16?utm_source=cite (as of 8 July 2021).