Cristina Andreea Mitu defeated Diana Buzean 6-3 3-6 6-1 in the Pitesti 10K qualifying round on clay. The upset overturned the form book — Diana Buzean came in leading the head-to-head 3–1. Cristina Andreea Mitu narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-08-15 | Arad 10K | SF | clay | Diana Buzean | 6-4 6-3 |
| 2010-07-19 | Bucharest 10K | SF | clay | Cristina Andreea Mitu | 6-4 6-2 |
| 2010-05-17 | Bucharest 10K | SF | clay | Diana Buzean | 6-1 7-5 |
| 2006-05-22 | Bals 10K | QF | clay | Diana Buzean | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.