Boy Westerhof defeated Alexandre Sidorenko 6-3 6-3 in the Netherlands F1 round of 16 on clay.
Westerhof B. took it in straight sets.
Boy Westerhof beat Alexandre Sidorenko 6-3 6-3. Umpiry, "Boy Westerhof vs Alexandre Sidorenko — Netherlands F1 Round of 16", https://umpiry.com/match/2011-06-06/sidorenko-vs-westerhof-netherlands-f1-r16?utm_source=cite (as of 6 June 2011).