Rafael De Mesa defeated Raul Valdes 7-5 4-6 7-6 in the Ecuador F3 round of 16 on clay. The upset overturned the form book — Raul Valdes came in leading the head-to-head 1–0, but Rafael De Mesa had been the form player, winning 4 of their last 6 on clay. Rafael De Mesa claimed a first win over Raul Valdes in two meetings, levelling the head-to-head at 1–1.
De Mesa R. came through in three sets.
Rafael De Mesa beat Raul Valdes 7-5 4-6 7-6. Umpiry, "Rafael De Mesa vs Raul Valdes — Ecuador F3 Round of 16", https://umpiry.com/match/1998-08-17/mesa-vs-valdes-ecuador-f3-r16?utm_source=cite (as of 17 August 1998).