Stadium: MTA 21 Round: 62 Ground: Clay
| ITF - M15 Antalya | 2021/03/18 07:00 | Matheus P De Almeida v Cozbinov, Alexander | 6-2,6-4 |
| ITF - M15 Antalya | 2021/03/17 10:00 | Cozbinov, Alexander v Vanneste, Jeroen | 6-0,6-3 |
| ITF M15 Kazan | 2021/03/10 15:10 | Yanki Erel v Cozbinov, Alexander | 6-3,6-4 |
| ITF M15 St Petersburg | 2021/02/12 11:35 | Jan Choinski v Cozbinov, Alexander | 6-2,6-7,6-4 |
| ITF M15 St Petersburg | 2021/02/11 11:15 | Andrey Chepelev v Cozbinov, Alexander | 0-6,2-6 |
| ITF M15 St Petersburg | 2021/02/10 10:10 | Cozbinov, Alexander v Daniel Michalski | 3-6,6-1,6-1 |
| ITF M15 St Petersburg | 2021/02/08 07:00 | Cozbinov, Alexander v Noskin, Egor | 3-6,6-0,10-5 |
| ITF M15 St Petersburg Qual | 2021/02/07 10:00 | Cozbinov, Alexander v Leonid Sheyngezikht | 6-4,6-3 |
| ITF - M15 Antalya | 2021/03/15 08:30 | Vlad Andrei Dancu v Taiyo Yamanaka | 6-3,6-3 |
| ITF - M15 Antalya | 2021/03/14 07:00 | Taiyo Yamanaka v Sveridenko, Vladislav | 6-4,6-1 |
| ITF - M15 Antalya | 2021/03/10 12:55 | Taiyo Yamanaka v Frunza, Nicolae | 2-6,2-6 |
| ITF - M15 Antalya | 2021/03/09 07:00 | Taiyo Yamanaka v Obrad Markovski | 1-6,7-5,10-3 |
| ITF - M15 Antalya | 2021/03/07 07:00 | Soyler, Osmancan v Taiyo Yamanaka | 0-6,1-6 |
| ITF - M15 Antalya | 2021/03/03 12:20 | Hong, Seong Chan v Taiyo Yamanaka | 3-6,6-4,6-2 |
| ITF - M15 Antalya | 2021/03/02 07:00 | Gokberk Saritas v Taiyo Yamanaka | 1-6,0-6 |
| ITF - M15 Antalya | 2021/03/01 10:00 | Pietro Marino v Taiyo Yamanaka | 2-6,2-6 |