Stadium: Court 2 Round: 62 Ground: Clay
| ITF - M15 Antalya | 2021/06/30 06:30 | Mert Naci Turker v Ignacio Carou | 2-6,3-6 |
| ITF - M15 Antalya | 2021/06/23 07:00 | Mert Naci Turker v Fabian Marozsan | 1-6,2-6 |
| ITF - M15 Antalya | 2021/06/22 09:25 | Kolisnyk, Olexiy v Mert Naci Turker | 7-5,4-6,10-5 |
| ITF - M15 Antalya | 2021/06/21 10:05 | Siim Troost v Mert Naci Turker | 1-6,1-6 |
| ITF - M15 Antalya | 2021/06/20 07:00 | Bejenaru, Adrian Mateo v Mert Naci Turker | 4-6,2-6 |
| ITF M15 Novomoskovsk | 2021/05/23 06:00 | Niccolo Catini v Mert Naci Turker | 6-3,6-2 |
| ITF - M15 Antalya | 2021/04/13 06:55 | Oleksii Krutykh v Mert Naci Turker | 6-1,6-1 |
| ITF - M15 Antalya | 2021/03/16 07:00 | Max Houkes v Mert Naci Turker | 6-1,6-1 |
| ITF - M15 Antalya | 2021/10/10 07:00 | Elias Julian Werner v Richard Zusman | 3-6,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/10/01 08:00 | Laurent, Thomas v Richard Zusman | 6-1,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/09/30 09:30 | Atlangeriev, Bekkhan v Richard Zusman | 6-2,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/09/29 13:30 | Klegou, Alexis v Richard Zusman | 6-2,5-4 |
| UTR Pro Tennis Series Barcelona | 2021/09/27 08:00 | Gabarro, Xavier v Richard Zusman | 3-6,6-6 |
| Challenger Kyiv | 2021/09/07 07:00 | Filip Cristian Jianu v Richard Zusman | 6-4,6-1 |
| ITF M15 Chornomorsk | 2021/08/31 08:45 | Richard Zusman v Tashbulatov, Dostanbek | 6-7,5-7 |
| ITF M25 Koksijde | 2021/08/15 13:30 | Richard Zusman v Max Cunat | 6-7,2-6 |