Celeste Contin defeated Eugenia Chialvo 6-7 6-4 6-1 in the San Juan 10K semi-final on clay. The upset overturned the form book — Eugenia Chialvo came in leading the head-to-head 1–0. Celeste Contin claimed a first win over Eugenia Chialvo in two meetings, levelling the head-to-head at 1–1.
Contin C. came through in three sets.
Celeste Contin beat Eugenia Chialvo 6-7 6-4 6-1. Umpiry, "Celeste Contin vs Eugenia Chialvo — San Juan 10K Semi-final", https://umpiry.com/match/1999-08-30/chialvo-vs-contin-san-juan-10k-sf?utm_source=cite (as of 30 August 1999).