Dunja Sunkic defeated Katarina Adamovic 6-2 6-4 in the Belgrade 10K round of 32 on clay. The upset overturned the form book — Katarina Adamovic came in leading the head-to-head 1–0. Dunja Sunkic claimed a first win over Katarina Adamovic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-08-06 | Pirot 10K | R32 | clay | Katarina Adamovic | 7-5 2-6 6-1 |