| UTR Pro Tennis Series Pazardzhik Women | 2021/05/08 06:00 | Silvia Maria Costache v Doroteja Petrovic | 6-2,7-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/06 11:30 | Silvia Maria Costache v Iva Ivanova | 6-7,3-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/05 10:30 | Silvia Maria Costache v Gaspar-Ivan, Ioana | 4-6,1-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/04 07:00 | Silvia Maria Costache v Luisa Meyer Auf Der Heide | 4-6,1-5 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/03 11:30 | Silvia Maria Costache v Shalamanova, Daria | 0-6,1-5 |
| UTR Pro Tennis Series Bucharest Women | 2021/05/01 09:00 | Silvia Maria Costache v Martinich, Ivania | 0-6,0-6 |
| UTR Pro Tennis Series Bucharest Women | 2021/04/29 07:00 | Silvia Maria Costache v Patricia Maria Tig | 3-6,2-6 |
| UTR Pro Tennis Series Bucharest Women | 2021/04/28 10:00 | Silvia Maria Costache v Stefana Lazar | 4-6,2-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/08 06:00 | Ruseva, Nikol v Trencheva, Elena | 6-4,6-3 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/06 07:00 | Ruseva, Nikol v Rositsa Dencheva | 0-6,5-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/05 09:00 | Ruseva, Nikol v Darja Semenistaja | 0-6,0-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/04 08:30 | Ruseva, Nikol v Stefana Lazar | 2-6,2-5 |
| ITF - W15 Antalya | 2021/02/14 06:00 | Kimmelmann, Julia v Ruseva, Nikol | 6-3,6-1 |
| ITF - W15 Antalya | 2021/02/07 09:30 | Ruseva, Nikol v Simona Ogescu | 4-6,1-6 |
| ITF - W15 Antalya | 2021/01/31 11:30 | Ruseva, Nikol v Iordache, Alexandra | 5-7,2-6 |
| ITF W15 Pazardzhik | 2020/10/27 08:00 | Sylvie Zund v Ruseva, Nikol | 6-1,6-3 |