Lubomira Bacheva defeated Patty Van Acker 5-7 6-4 6-3 in the Biel 25K semi-final on hard. The result followed the form book — Lubomira Bacheva came in leading the head-to-head 2–1. Lubomira Bacheva extended the head-to-head to 3–1.
Bacheva L. came through in three sets.
Lubomira Bacheva beat Patty Van Acker 5-7 6-4 6-3. Umpiry, "Lubomira Bacheva vs Patty Van Acker — Biel 25K Semi-final", https://umpiry.com/match/1999-03-08/acker-vs-bacheva-biel-25k-sf?utm_source=cite (as of 8 March 1999).