Natalia Ryzhonkova defeated Tatiana Bua 6-4 6-1 in the Knokke 10K round of 16 on clay. The upset overturned the form book — Tatiana Bua came in leading the head-to-head 1–0, but Natalia Ryzhonkova had been the form player, winning 2 of their last 4 on clay. Natalia Ryzhonkova claimed a first win over Tatiana Bua in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-07-30 | Rebecq 25K | Q16 | clay | Tatiana Bua | 6-4 6-3 |