Marcel Felder defeated Juan Manuel Valverde 6-1 6-0 in the Brazil F1 round of 16 on clay. The result followed the form book — Marcel Felder came in leading the head-to-head 1–0. Marcel Felder extended the head-to-head to 2–0.
Felder M. took it in straight sets.
Clay: Felder M. leads 1–0 · Hard: Felder M. leads 1–0
Marcel Felder beat Juan Manuel Valverde 6-1 6-0. Umpiry, "Marcel Felder vs Juan Manuel Valverde — Brazil F1 Round of 16", https://umpiry.com/match/2008-04-21/felder-vs-valverde-brazil-f1-r16?utm_source=cite (as of 21 April 2008).