Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF - M15 - Monastir | 2021/10/18 10:30 | Sabit Suntic v Ankit Chopra | 6-2,6-2 |
| ITF M25 - Skopje | 2021/09/28 09:20 | Luca Castagnola v Sabit Suntic | 6-2,6-3 |
| ITF M25 - Skopje | 2021/09/27 14:15 | Bojan Radoman v Sabit Suntic | 2-6,1-6 |
| 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 - Monastir | 2021/10/18 10:30 | Fabian Hansch Mauritzson v Christian Kuehne | 1-6,3-6 |
| ITF M25 - Sierre | 2021/08/31 10:40 | Christian Kuehne v Jacopo Berrettini | 3-6,0-6 |
| ITF M25 - Sierre | 2021/08/29 11:40 | Christian Kuehne v Leo Galliano | 6-3,6-0 |
| ITF M25 - Caslano | 2021/08/24 11:55 | Christian Kuehne v Gabriele Moghini | 1-6,2-6 |
| ITF M25 - Caslano | 2021/08/23 16:05 | Lilian Breut v Christian Kuehne | 0-6,6-1,6-10 |
| ITF M25 - Muttenz | 2021/08/16 08:00 | Louroi Martinez v Christian Kuehne | 6-3,6-4 |
| ITF - M15 - Monastir | 2021/08/01 10:00 | Siddhant Banthia v Christian Kuehne | 6-4,7-5 |