Jorge Aguilar defeated Sebastian Decoud 6-1 6-3 in the Argentina F1 round of 16 on clay. The upset overturned the form book — Sebastian Decoud came in leading the head-to-head 1–0. Jorge Aguilar claimed a first win over Sebastian Decoud in two meetings, levelling the head-to-head at 1–1.
Aguilar J. took it in straight sets.
Jorge Aguilar beat Sebastian Decoud 6-1 6-3. Umpiry, "Jorge Aguilar vs Sebastian Decoud — Argentina F1 Round of 16", https://umpiry.com/match/2003-08-18/aguilar-vs-decoud-argentina-f1-r16?utm_source=cite (as of 18 August 2003).