Nirupama Sanjeev defeated Katalin Marosi 4-6 6-0 6-3 in the Getxo 25K round of 16 on clay. The upset overturned the form book — Katalin Marosi came in leading the head-to-head 1–0. Nirupama Sanjeev claimed a first win over Katalin Marosi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-12-13 | New Delhi 25K | SF | grass | Katalin Marosi | 7-6 4-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.