Stadion: Court 2 Round: 25 Ground: Clay
| ITF - M15 - Antalya | 2020/12/01 07:00 | Evgeny Tyurnev v Cengiz Aksu | 7-6,6-4 |
| Challenger - Istanbul | 2020/10/17 09:40 | Borna Gojo v Cengiz Aksu | 7-5,7-5 |
| Eastern European Championship | 2020/07/30 08:00 | Danilo Petrovic v Cengiz Aksu | 6-7,7-5,7-5 |
| Eastern European Championship | 2020/07/28 08:00 | Cengiz Aksu v Dusan Rajic | 6-7,6-3,4-6 |
| Eastern European Championship | 2020/07/27 08:00 | Matias Zukas v Cengiz Aksu | 2-6,3-6 |
| ITF - M15 - Antalya | 2020/03/04 07:00 | Cengiz Aksu v Bogdan Ionut Apostol | 5-7,2-6 |
| ITF - M15 - Antalya | 2020/03/02 07:00 | Cengiz Aksu v Bruno P Navarro | 6-4,6-2 |
| ITF - M25 - Antalya | 2020/02/26 10:00 | Jules Okala v Cengiz Aksu | 7-5,6-3 |
| ITF - M15 - Antalya | 2020/12/02 07:00 | Stefan Palosi v Khumoyun Sultanov | 7-5,6-2 |
| ITF - M15 - Quinta Do Lago | 2020/11/04 12:50 | Khumoyun Sultanov v David Volfson | 3-6,6-7 |
| ITF - M25 - Vale Do Lobo | 2020/10/27 12:30 | Maxime Hamou v Khumoyun Sultanov | 6-1,6-3 |
| ITF - M25 - Hamburg | 2020/10/20 11:45 | Timo Stodder v Khumoyun Sultanov | 6-0,6-4 |
| Challenger - Bengaluru | 2020/02/12 07:50 | James Duckworth v Khumoyun Sultanov | 6-4,7-6 |
| Challenger - Bengaluru | 2020/02/10 10:00 | S D Prajwal Dev v Khumoyun Sultanov | 2-6,1-6 |
| ITF - M25 - Nonthaburi | 2020/02/07 02:30 | Benjamin Bonzi v Khumoyun Sultanov | 6-3,6-2 |
| ITF - M25 - Nonthaburi | 2020/02/06 05:05 | Marsel Ilhan v Khumoyun Sultanov | 6-7,6-7 |