Boy Westerhof defeated Antal Van Der Duim 6-3 6-4 in the Netherlands F1 round of 16 on clay.
Westerhof B. took it in straight sets.
Boy Westerhof beat Antal Van Der Duim 6-3 6-4. Umpiry, "Boy Westerhof vs Antal Van Der Duim — Netherlands F1 Round of 16", https://umpiry.com/match/2006-06-12/duim-vs-westerhof-netherlands-f1-r16?utm_source=cite (as of 12 June 2006).