Stadium: Court 5 Round: 26 Ground: Clay
| ITF M15 Novi Sad | 2021/07/28 09:35 | Spec, Matic v Mariano Navone | 1-6,6-4,1-6 |
| ITF M15 Novi Sad | 2021/07/27 07:30 | Spec, Matic v Koray Kirci | 6-3,7-5 |
| ITF M15 Novi Sad | 2021/07/25 12:00 | Spec, Matic v Daniil Savelev | 6-1,6-3 |
| ITF M15 Prijedor | 2021/05/09 12:30 | Spec, Matic v Luka Miklavcic | 3-6,6-3,8-10 |
| ITF M15 St Petersburg | 2021/04/17 09:45 | Spec, Matic v Yanki Erel | 6-7,2-6 |
| ITF M15 St Petersburg | 2021/04/16 07:55 | Spec, Matic v Alexey Zakharov | 6-2,6-4 |
| ITF M15 St Petersburg | 2021/04/15 07:00 | Jakub Paul v Spec, Matic | 6-7,6-4,3-6 |
| ITF M15 St Petersburg | 2021/04/14 09:15 | Spec, Matic v Alafia Ayeni | 6-3,6-4 |
| ITF M15 Novi Sad | 2021/08/04 10:00 | Gorazd Srbljak v Nagy, Peter | 3-6,6-4,7-5 |
| ITF M15 Novi Sad | 2021/08/03 10:20 | Gorazd Srbljak v Keremedchiev, Ivailo | 6-1,7-5 |
| ITF M15 Novi Sad | 2021/08/02 09:30 | Gorazd Srbljak v Postay, Alan | 6-1,6-4 |
| ITF M15 Novi Sad | 2021/08/01 08:30 | Gorazd Srbljak v Eskic, Relja | 6-1,6-1 |
| ITF M15 Novi Sad | 2021/07/29 09:25 | Gabriel Donev v Gorazd Srbljak | 6-2,6-4 |
| ITF M15 Novi Sad | 2021/07/28 07:30 | Gorazd Srbljak v Marsel Ilhan | 6-2,6-4 |
| ITF M15 Novi Sad | 2021/07/27 07:30 | Danilo Raicevic v Gorazd Srbljak | 1-6,2-6 |
| ITF M15 Novi Sad | 2021/07/26 07:30 | Malesevic, Nemanja v Gorazd Srbljak | 1-6,1-6 |