Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Idanha-A-Nova | 2021/07/13 14:05 | Sho Shimabukuro v Alexander Cozbinov | 3-6,6-3,6-7 |
| ITF M25 Belgrade | 2021/07/01 07:00 | Edoardo Lavagno v Alexander Cozbinov | 6-4,6-3 |
| Davis Cup | 2021/06/25 09:30 | Marco De Rossi v Alexander Cozbinov | 3-6,6-3,3-6 |
| Davis Cup | 2021/06/24 09:30 | Fresk Sylhasi v Alexander Cozbinov | 0-6,1-6 |
| Davis Cup | 2021/06/22 09:25 | Eric Cervos Noguer v Alexander Cozbinov | 0-6,0-6 |
| ITF M15 Skopje | 2021/06/08 10:30 | Alexander Cozbinov v Alexander Weis | 5-7,4-6 |
| ITF M15 Kouvola | 2021/05/28 09:05 | Alessandro Bega v Alexander Cozbinov | 6-4,6-0 |
| ITF M15 Kouvola | 2021/05/27 09:55 | Karl Kiur Saar v Alexander Cozbinov | 0-6,1-6 |
| ITF M25 Idanha-A-Nova | 2021/07/14 08:00 | Andrey Chepelev v Francisco Cabral | 1-6,3-6 |
| Challenger Porto | 2021/06/28 10:00 | Sem Verbeek v Francisco Cabral | 7-6,6-3 |
| Challenger Porto | 2021/06/27 11:30 | Francisco Cabral v Ronald Slobodchikov | 6-2,6-2 |
| Challenger Oeiras | 2021/05/23 10:00 | Filip Cristian Jianu v Francisco Cabral | 6-7,6-4,6-2 |
| Challenger Oeiras | 2021/05/16 14:00 | Francisco Cabral v Alex Molcan | 1-6,1-6 |
| ITF M15 Valldoreix | 2021/05/11 08:00 | Niels Visker v Francisco Cabral | 7-5,6-0 |
| ITF M15 Valldoreix | 2021/05/10 09:00 | Francisco Cabral v Ryan Nijboer | 6-1,7-5 |
| ITF M15 Valldoreix | 2021/05/09 13:00 | Francisco Cabral v Rafael Giotis | 7-5,6-0 |