Estadio: Court 3 Round: 54 Ground: Clay
| ITF W15 Banja Luka | 2019/06/03 09:30 | Elena Milovanovic v Katarina Kostic | 6-1,6-0 |
| ITF W15 Tucepi | 2019/05/07 07:00 | Marina Pavkovic v Katarina Kostic | 6-4,6-3 |
| ITF Szekesfehervar - Femenino | 2018/09/02 08:00 | Justyna Malatinska v Katarina Kostic | 6-2,3-6,6-4 |
| ITF Women Vrnjacka Banja | 2018/08/19 10:00 | Katarina Kostic v Nika Zupancic | 3-6,6-4,2-6 |
| ITF Prokuplje - Femenino | 2018/07/12 08:40 | Katarina Kostic v Barbara Bonic | 0-6,4-6 |
| ITF Prokuplje - Femenino | 2018/07/11 09:00 | Kiara Cvetkovic v Katarina Kostic | 2-6,6-2,2-6 |
| ITF Prokuplje - Femenino - Clasificación | 2018/07/09 07:00 | Costanza Traversi v Katarina Kostic | 4-6,3-6 |
| ITF Prokuplje - Femenino - Clasificación | 2018/06/30 07:00 | Katarina Kostic v Andrijana Stoilkovic | 2-6,2-6 |
| ITF W15 Prokuplje | 2019/07/04 10:15 | Seone Mendez v Szabina Szlavikovics | 6-0,6-3 |
| ITF W15 Prokuplje | 2019/07/03 07:00 | Szabina Szlavikovics v Galateia Mesochoritou | 6-3,4-6,6-2 |
| ITF W15 Prokuplje | 2019/07/02 08:00 | Kristina Novak v Szabina Szlavikovics | 4-6,3-6 |
| ITF W15 Prokuplje | 2019/07/01 07:00 | Szabina Szlavikovics v Ekaterina Ovcharenko | 7-6,6-3 |
| ITF W15 Tabarka | 2019/05/23 10:45 | Szabina Szlavikovics v Lena Lutzeier | 6-7,4-6 |
| ITF W15 Tabarka | 2019/05/22 11:55 | Szabina Szlavikovics v Jelena Stojanovic | 6-2,6-2 |
| ITF W15 Tabarka | 2019/05/20 14:00 | Syria La Cerra v Szabina Szlavikovics | 0-6,0-6 |
| ITF W15 Tabarka | 2019/05/20 08:00 | Natalia G Portero v Szabina Szlavikovics | 0-6,2-6 |