| Coupe Davis | 2021/06/24 09:30 | Gorazd Srbljak v de Rossi, Marco | 1-6,6-3,1-6 |
| ITF M15 Majadahonda | 2021/05/03 10:45 | Max Houkes v de Rossi, Marco | 6-2,6-4 |
| ITF M15 Majadahonda | 2021/05/02 12:00 | Singh, Digvijaypratap v de Rossi, Marco | 7-6,0-6,3-10 |
| ITF M15 Las Palmas | 2021/04/26 12:00 | Thomas Deschamps v de Rossi, Marco | 6-2,6-4 |
| ITF - M15 Antalya | 2021/04/12 09:00 | Kim, Cheong-Eui v de Rossi, Marco | 3-6,7-5,10-8 |
| ITF - M15 Antalya | 2021/04/11 07:00 | de Rossi, Marco v Rohrer, Niklas | 6-3,6-2 |
| ITF - M15 Antalya | 2021/04/05 07:00 | Michalis Sakellaridis v de Rossi, Marco | 6-3,3-6,10-5 |
| ITF - M15 Antalya | 2021/04/04 10:00 | Giuseppe La Vela v de Rossi, Marco | 4-6,0-6 |
| Coupe Davis | 2021/06/24 09:30 | Fresk Sylhasi v Cozbinov, Alexander | 0-6,1-6 |
| Coupe Davis | 2021/06/22 09:25 | Cervos Noguer, Eric v Cozbinov, Alexander | 0-6,0-6 |
| ITF M15 Skopje | 2021/06/08 10:30 | Cozbinov, Alexander v Alexander Weis | 5-7,4-6 |
| ITF M15 Kouvola | 2021/05/28 09:05 | Bega, Alessandro v Cozbinov, Alexander | 6-4,6-0 |
| ITF M15 Kouvola | 2021/05/27 09:55 | Saar, Karl Kiur v Cozbinov, Alexander | 0-6,1-6 |
| ITF M15 Kouvola | 2021/05/26 07:20 | Dominik Palan v Cozbinov, Alexander | 6-7,2-6 |
| ITF - M15 Tbilisi | 2021/05/19 08:35 | Khan, Zane v Cozbinov, Alexander | 3-6,6-4,6-0 |
| ITF M15 Jerusalem | 2021/05/13 07:30 | Yshai Oliel v Cozbinov, Alexander | 6-3,4-6,6-3 |