| Challenger Shenzhen Qual | 2015/01/03 02:00 | Shilin Xu v Cagla Buyukakcay | 1-6,6-7 |
| Wimbledon Women Qual | 2016/06/21 16:25 | Elise Mertens v Elitsa Kostova | 6-4,6-4 |
| Billie Jean King Cup | 2016/02/05 07:30 | Ysaline Bonaventure v Elitsa Kostova | 6-3,3-6,6-3 |
| Billie Jean King Cup | 2016/02/03 07:30 | Dalma Galfi v Elitsa Kostova | 5-7,2-6 |
| Wimbledon Women Qual | 2015/06/24 12:55 | Margarita Betova v Elitsa Kostova | 6-2,6-3 |
| Wimbledon Women Qual | 2015/06/23 11:20 | Elitsa Kostova v Patricia Maria Tig | 4-6,6-4,7-5 |