Lenka Tvaroskova defeated Natalia Stoudyanaya 5-4 4-5 3-5 4-0 5-3 in the Minsk 10K round of 32 on carpet. The upset overturned the form book — Natalia Stoudyanaya came in leading the head-to-head 1–0. Lenka Tvaroskova claimed a first win over Natalia Stoudyanaya in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-10-25 | Minsk 10K | R32 | carpet | Natalia Stoudyanaya | 6-1 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.