Ground: Clay
| ITF M25 Caloundra | 2024/11/17 00:00 | Arjun Mehrotra v Stefan Kostic | 6-3,6-1 |
| ITF M25 Brisbane | 2024/11/10 01:00 | Finley Hall v Stefan Kostic | 6-3,7-6 |
| ITF M15 Kursumlijska Banja | 2024/08/28 10:20 | Stefan Kostic v Iannis Miletich | 4-6,2-6 |
| ITF M15 Pirot | 2024/08/21 10:10 | Stefan Kostic v Demetris Azoides | 0-6,2-6 |
| ITF M15 Kursumlijska Banja | 2024/08/14 07:00 | Stefan Latinov v Stefan Kostic | 6-1,7-6 |
| ITF M15 Kursumlijska Banja | 2024/08/08 09:00 | Stefan Kostic v Tommaso Compagnucci | 1-6,1-6 |
| ITF M15 Kursumlijska Banja | 2024/08/07 11:45 | Romeo Hadzimehmedovic v Stefan Kostic | 5-7,4-6 |
| ITF M15 Kursumlijska Banja | 2024/07/31 09:40 | Stefan Kostic v Franco Ribero | 2-6,2-6 |
| ITF M15 Antalya | 2025/02/13 08:30 | Neil Oberleitner v Piet Luis Pinter | 6-1,6-4 |
| ITF M15 Antalya | 2025/02/12 09:42 | Piet Luis Pinter v Gokberk Saritas | 6-0,6-7,6-1 |
| ITF M15 Antalya | 2024/12/15 07:00 | Piet Luis Pinter v Fabio De Michele | 6-4,6-7,2-10 |
| ITF M15 Antalya | 2024/12/11 09:50 | Oleksii Krutykh v Piet Luis Pinter | 6-2,6-2 |
| ITF M15 Antalya | 2024/12/10 08:25 | Piet Luis Pinter v Andrea Paolini | 7-5,4-6,10-7 |
| ITF M15 Antalya | 2024/12/09 11:00 | Stefan A Andreescu v Piet Luis Pinter | 2-6,6-4,5-10 |
| ITF M15 Antalya | 2024/12/02 08:00 | Simone Agostini v Piet Luis Pinter | 6-2,6-4 |
| ITF M15 Antalya | 2024/12/01 07:00 | Vitali Shvets v Piet Luis Pinter | 2-6,3-6 |