| UTR Pro Tennis Series Beograd | 2021/07/05 07:30 | Slavic, Nikola v Dusan Obradovic | 6-7,6-7 |
| ITF M25 Belgrade | 2021/06/30 08:45 | Slavic, Nikola v Akira Santillan | 1-6,1-6 |
| ITF M25 Belgrade | 2021/06/29 09:00 | Botezan, George v Slavic, Nikola | 4-6,2-6 |
| ITF M25 Belgrade | 2021/06/28 07:00 | Slavic, Nikola v Toby Martin | 6-4,6-3 |
| ITF M25 Belgrade | 2021/06/27 07:00 | Paul Valsecchi v Slavic, Nikola | 4-6,4-6 |
| Ystad, Singles M-ITF-SWE-03A | 2019/08/06 11:35 | Yitbarek, Simon v Slavic, Nikola | 6-3,6-2 |
| ITF - M15 Antalya | 2019/04/18 07:30 | Slavic, Nikola v Bogdan Bobrov | 1-6,2-6 |
| ITF - M15 Antalya | 2019/04/17 11:15 | Illya Beloborodko v Slavic, Nikola | 6-1,3-6,6-7 |
| UTR Pro Tennis Series Beograd | 2021/07/05 07:30 | Michalis Sakellaridis v Kolisnyk, Olexiy | 3-5 |
| ITF - M15 Antalya | 2021/06/27 06:30 | Michalis Sakellaridis v Lorenzo Joaquin Rodriguez | 2-6,4-6 |
| ITF - M15 Antalya | 2021/06/20 07:00 | Michalis Sakellaridis v Daniel Antonio Nunez | 6-7,3-6 |
| ITF - M15 Antalya | 2021/06/14 07:30 | Oleg Prihodko v Michalis Sakellaridis | 6-0,6-4 |
| ITF - M15 Antalya | 2021/06/13 07:30 | Michalis Sakellaridis v Credit Chaiyarin | 6-4,6-4 |
| ITF - M15 Antalya | 2021/06/07 11:10 | Timo Stodder v Michalis Sakellaridis | 7-5,6-4 |
| ITF - M15 Antalya | 2021/06/06 07:30 | Michalis Sakellaridis v Amiri, Ali | 6-1,6-1 |
| ITF - M15 Antalya | 2021/06/02 07:30 | Mariano Navone v Michalis Sakellaridis | 6-3,7-6 |