Stadium: Court 2 Round: 25 Ground: Clay
| ITF - M15 Antalya | 2020/12/01 07:00 | Tyurnev, Evgeny v Cengiz Aksu | 7-6,6-4 |
| Istanbul, Turkey | 2020/10/17 09:40 | Gojo, Borna v Cengiz Aksu | 7-5,7-5 |
| Eastern European Championship | 2020/07/30 08:00 | Petrovic, Danilo v Cengiz Aksu | 6-7,7-5,7-5 |
| Eastern European Championship | 2020/07/28 08:00 | Cengiz Aksu v Rajic, Dusan | 6-7,6-3,4-6 |
| Eastern European Championship | 2020/07/27 08:00 | Zukas, Matias v Cengiz Aksu | 2-6,3-6 |
| ITF - M15 Antalya | 2020/03/04 07:00 | Cengiz Aksu v Apostol, Bogdan Ionut | 5-7,2-6 |
| ITF - M15 Antalya | 2020/03/02 07:00 | Cengiz Aksu v Pujol Navarro, Bruno | 6-4,6-2 |
| ITF - M25 Antalya | 2020/02/26 10:00 | Okala, Jules 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 Volfson, David | 3-6,6-7 |
| ITF - M25 Vale Do Lobo | 2020/10/27 12:30 | Hamou, Maxime 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 |
| Nonthaburi, Singles M-ITF-THA-01A | 2020/02/07 02:30 | Benjamin Bonzi v Khumoyun Sultanov | 6-3,6-2 |
| Nonthaburi, Singles M-ITF-THA-01A | 2020/02/06 05:05 | Marsel Ilhan v Khumoyun Sultanov | 6-7,6-7 |