| UTR Pro Beograd | 2023/10/02 06:00 | Domagoj Biljesko v Enrique Bogo | 6-1,6-7,5-1 |
| ITF M25 Zlatibor | 2023/09/27 09:00 | Niksa Arsic v Domagoj Biljesko | 6-4,6-4 |
| ITF M25 Zlatibor | 2023/09/26 07:00 | Melik Feler v Domagoj Biljesko | 1-6,2-6 |
| ITF M25 Maribor | 2023/09/06 12:55 | Matej Dodig v Domagoj Biljesko | 6-0,6-4 |
| ITF M25 Maribor | 2023/08/31 09:05 | Domagoj Biljesko v Fausto Tabacco | 6-1,3-6,2-6 |
| ITF M25 Osijek | 2023/08/09 09:25 | Domagoj Biljesko v Romeo Hadzimehmedovic | 7-5,6-7,1-6 |
| ITF M15 Novi Sad | 2023/07/31 07:00 | Louis Tessa v Domagoj Biljesko | 6-3,5-7,10-7 |
| ITF M15 Celje | 2023/06/28 17:40 | Domagoj Biljesko v Timofey Stepanov | 5-7,6-4,4-6 |
| UTR Pro Beograd | 2023/10/02 08:01 | Zekai Li v Aleksa Mardjonovic | 3-6,2-6 |
| ITF M15 Pirot | 2023/09/05 07:30 | Aleksa Mardjonovic v Francesco Ferrari | 7-6,4-6,6-10 |
| ITF M15 Pirot | 2023/09/04 08:30 | Aleksa Mardjonovic v Jacques-Kai Inoue | 6-3,7-5 |
| ITF M15 Vienna | 2023/08/29 09:30 | Tomas Lanik v Aleksa Mardjonovic | 6-2,6-0 |
| ITF M15 Novi Sad | 2023/08/01 11:15 | Nicolas Bruna v Aleksa Mardjonovic | 6-1,6-2 |
| ITF M15 Novi Sad | 2023/08/01 07:30 | Maxim Krapivin v Aleksa Mardjonovic | 0-6,5-7 |
| ITF M15 Novi Sad | 2023/07/31 09:30 | Lorenzo Ferri v Aleksa Mardjonovic | 6-1,2-6,4-10 |
| ITF M15 Belgrade | 2023/06/29 08:40 | Andrey Chepelev v Aleksa Mardjonovic | 6-3,6-3 |