Oana Elena Golimbioschi defeated Olivia Sanchez 6-4 3-6 7-6 in the Mont De Marsan 25K round of 16 on clay. The upset overturned the form book — Olivia Sanchez came in leading the head-to-head 2–0. Oana Elena Golimbioschi claimed a first win over Olivia Sanchez in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-11-15 | Deauville 10K | R16 | clay | Olivia Sanchez | 6-0 6-2 |
| 1999-11-01 | St Raphael 10K | SF | hard | Olivia Sanchez | 7-5 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.