Lubomira Bacheva defeated Nora Koves 6-3 6-1 in the Biel 25K round of 16 on hard. The upset overturned the form book — Nora Koves came in leading the head-to-head 1–0. Lubomira Bacheva claimed a first win over Nora Koves in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-02-22 | Bushey 25K | R32 | carpet | Nora Koves | 2-6 6-3 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.