Jan Boruszewski advanced when Amir Hadad retired 4-6 7-6 in the Halle qualifying round of 32.
Boruszewski J. advanced when Hadad A. retired.
Jan Boruszewski beat Amir Hadad 4-6 7-6(1) after Amir Hadad retired. Umpiry, "Jan Boruszewski vs Amir Hadad — Halle Qualifying Round of 32", https://umpiry.com/match/2001-06-11/boruszewski-vs-hadad-halle-q32?utm_source=cite (as of 11 June 2001).