Diana Majkic defeated Monica Mastan 7-6 6-2 in the Cluj 10K round of 16 on clay. The upset overturned the form book — Monica Mastan came in leading the head-to-head 2–0, but Diana Majkic had been the form player, winning 2 of their last 6 on clay. Diana Majkic claimed a first win over Monica Mastan in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-09-24 | Belgrade 10K | R32 | clay | Monica Mastan | 3-6 6-4 6-2 |
| 2001-04-16 | Belgrade 10K | R32 | clay | Monica Mastan | 3-6 6-1 6-1 |