Monica Niculescu defeated Maren Kassens 6-1 6-0 in the Bucharest 10K round of 32 on clay. The upset overturned the form book — Maren Kassens came in leading the head-to-head 1–0. Monica Niculescu claimed a first win over Maren Kassens in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-08-29 | Bucharest 7 10K | R16 | clay | Maren Kassens | 7-5 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.