| UTR Pro Tennis Series - Florenta - Feminin | 2022/10/07 09:00 | Julia Terziyska v Elitsa Kostova | 3-6,6-7 |
| UTR Pro Tennis Series - Pazardzhik - Feminin | 2021/05/15 07:30 | Elitsa Kostova v Julia Terziyska | 6-4,5-1 |
| ITF - W25 El Espinar | 2019/08/03 12:10 | Elitsa Kostova v Julia Terziyska | 7-6,4-6,4-6 |
| UTR Pro - Blagoevgrad - Feminin | 2023/02/04 08:03 | Julia Terziyska v Abigail Amos | 6-2,6-0 |
| UTR Pro - Blagoevgrad - Feminin | 2023/02/03 06:00 | Julia Terziyska v Victoria Borodulina | 6-0,6-2 |
| UTR Pro - Blagoevgrad - Feminin | 2023/02/01 06:00 | Julia Terziyska v Isabelle Kouzmanov | 3-6,6-1,7-6 |
| UTR Pro - Blagoevgrad - Feminin | 2023/01/31 07:30 | Julia Terziyska v Mia Chudejova | 6-1,6-0 |
| UTR Pro - Blagoevgrad - Feminin | 2023/01/30 06:00 | Gebriela Mihaylova v Julia Terziyska | 1-6,1-6 |
| UTR Pro Tennis Series - Blagoevgrad - Feminin | 2022/12/10 06:00 | Julia Terziyska v Georgia Andreea Craciun | 6-1,4-6,1-6 |
| UTR Pro Tennis Series - Blagoevgrad - Feminin | 2022/12/09 06:00 | Julia Terziyska v Sara Gvozdenovic | 6-2,6-3 |
| UTR Pro Tennis Series - Blagoevgrad - Feminin | 2022/12/08 09:05 | Julia Terziyska v Victoria Borodulina | 1-1 |
| UTR Pro - Blagoevgrad - Feminin | 2023/02/04 09:00 | Giulia Pairone v Elitsa Kostova | 6-7,6-7 |
| UTR Pro - Blagoevgrad - Feminin | 2023/02/03 07:30 | Elitsa Kostova v Viktoriia Dema | 6-3,6-4 |
| UTR Pro - Blagoevgrad - Feminin | 2023/02/02 08:14 | Elitsa Kostova v Zinovia Vaneva | 6-0,3-6,6-2 |
| UTR Pro - Blagoevgrad - Feminin | 2023/02/01 07:30 | Lidia Encheva v Elitsa Kostova | 1-6,5-7 |
| UTR Pro - Blagoevgrad - Feminin | 2023/01/31 09:00 | Yoanna Radulova v Elitsa Kostova | 4-6,2-6 |
| UTR Pro - Barcelona - Feminin | 2023/01/14 12:00 | Elitsa Kostova v Daniela Ciobanu | 3-6,4-6 |
| UTR Pro - Barcelona - Feminin | 2023/01/13 12:14 | Elitsa Kostova v Esther Lopez | 2-6,6-3,4-6 |
| UTR Pro - Barcelona - Feminin | 2023/01/11 08:00 | Elitsa Kostova v Aliesia Reva | 6-4,5-1 |