Boy Wijnmalen defeated Walter Orth 6-4 6-4 in the Netherlands 4 round of 32 on clay.
Wijnmalen B. took it in straight sets.
Boy Wijnmalen beat Walter Orth 6-4 6-4. Umpiry, "Boy Wijnmalen vs Walter Orth — Netherlands 4 Round of 32", https://umpiry.com/match/2001-06-11/orth-vs-wijnmalen-netherlands-4-r32?utm_source=cite (as of 11 June 2001).