Stadium: Court 6 Round: 62 Ground: Clay
| ITF M15 Pirot | 2021/09/20 08:00 | Nicolas Parizzia v Sabit Suntic | 6-4,6-2 |
| ITF M15 Novi Sad | 2021/08/02 08:00 | Sabit Suntic v Roko Horvat | 1-6,1-6 |
| ITF M15 Novi Sad | 2021/08/01 08:30 | Daniil Savelev v Sabit Suntic | 7-5,1-6,4-10 |
| ITF M15 Novi Sad | 2021/07/25 07:00 | Rana-Roop Singh Bhullar v Sabit Suntic | 7-6,6-4 |
| ITF M15 Doboj | 2021/07/12 09:30 | Danijal Muminovic v Sabit Suntic | 6-0,6-2 |
| ITF M15 Doboj | 2021/07/11 08:15 | Sabit Suntic v Andreja Petrovic | 5-7,6-2,10-7 |
| ITF M15 Antalya | 2021/06/27 06:30 | Sabit Suntic v Samuil Konov | 4-6,3-6 |
| ITF M15 Szarajevó | 2021/05/30 07:30 | Erdem Isitan v Sabit Suntic | 6-0,4-6,10-4 |