Stadium: Court 7 Round: 62 Ground: Clay
| ITF M15 Cairo | 2021/07/25 07:00 | Fellin, Manfred v Alhogbani, Ammar | 6-3,7-5 |
| ITF M15 Cairo | 2021/07/21 10:30 | Fellin, Manfred v Nathan Seateun | 4-6,0-6 |
| ITF M15 Novomoskovsk | 2021/05/30 06:15 | Fellin, Manfred v Leyton Rivera | 4-6,6-3,6-10 |
| ITF M15 Novomoskovsk | 2021/05/23 10:30 | Alcalde, Juan Ignacio v Fellin, Manfred | 7-6,2-6,10-3 |
| ITF M15 Cairo | 2021/04/26 08:00 | Fellin, Manfred v Ragazzi, Alessandro | 3-6,1-6 |
| ITF M15 Cairo | 2021/04/21 09:25 | Capecchi, Daniele v Fellin, Manfred | 6-0,6-4 |
| ITF M15 Cairo | 2021/04/20 08:00 | Luigi Sorrentino v Fellin, Manfred | 6-2,6-2 |
| ITF M15 Cairo | 2021/04/18 17:30 | El Sayed, Ashraf v Fellin, Manfred | 0-6,3-6 |
| ITF M15 Cairo | 2021/07/25 07:00 | Sami Ben Abdennibi v Akram El Sallaly | 6-3,6-0 |
| ITF M15 Cairo | 2021/07/19 08:30 | Luca Fantini v Sami Ben Abdennibi | 2-6,6-4,12-10 |
| ITF M15 Cairo | 2021/07/18 07:30 | Sami Ben Abdennibi v Sharma, Atharva | 6-2,7-5 |
| ITF - M15 Antalya | 2021/06/27 06:30 | Daiki Yoshimura v Sami Ben Abdennibi | 6-3,6-4 |
| ITF - M15 Antalya | 2021/06/20 07:00 | Yu, Cheng-Yu v Sami Ben Abdennibi | 6-3,2-6,7-10 |
| ITF - M15 Antalya | 2021/04/05 07:00 | Sandro Kopp v Sami Ben Abdennibi | 5-7,6-1,10-2 |
| ITF - M15 Antalya | 2021/04/04 06:30 | Sami Ben Abdennibi v Manuel Mazza | 6-1,6-1 |
| ITF - M15 Monastir | 2021/03/07 12:00 | Sami Ben Abdennibi v Luigi Sorrentino | 1-6,2-6 |