Sebastian Prieto defeated Gaston Etlis 6-2 6-2 in the Roland Garros qualifying round of 64 on clay. The upset overturned the form book — Gaston Etlis came in leading the head-to-head 1–0. Sebastian Prieto claimed a first win over Gaston Etlis in two meetings, levelling the head-to-head at 1–1.
Prieto S. took it in straight sets.
Sebastian Prieto beat Gaston Etlis 6-2 6-2. Umpiry, "Sebastian Prieto vs Gaston Etlis — Roland Garros Qualifying Round of 64", https://umpiry.com/match/2000-05-29/etlis-vs-prieto-roland-garros-q64?utm_source=cite (as of 29 May 2000).