Stadion: Court 5 Round: 27 Ground: Clay
| ITF - M15 - Antalya | 2021/05/06 09:00 | Yanki Erel v Sandro Kopp | 4-6,5-7 |
| ITF - M15 - Antalya | 2021/05/05 07:00 | Sandro Kopp v Edoardo Eremin | 6-4,6-3 |
| ITF - M15 - Antalya | 2021/05/04 07:00 | Orlando Luz v Sandro Kopp | 6-1,6-2 |
| ITF - M15 - Antalya | 2021/05/03 07:00 | Mattia Rossi v Sandro Kopp | 1-6,1-6 |
| ITF - M15 - Antalya | 2021/04/17 07:20 | Sandro Kopp v Nicolae Frunza | 3-6,1-6 |
| ITF - M15 - Antalya | 2021/04/16 07:00 | Sandro Kopp v Matteo Arnaldi | 7-6,2-6,6-3 |
| ITF - M15 - Antalya | 2021/04/15 08:35 | Karl Friberg v Sandro Kopp | 2-6,5-7 |
| ITF - M15 - Antalya | 2021/04/13 07:00 | Sandro Kopp v Peter Fajta | 6-2,7-6 |
| ITF - M15 - Antalya | 2021/05/06 11:40 | Gabriele Piraino v Adrian Andreev | 3-6,2-6 |
| ITF - M15 - Antalya | 2021/05/05 11:40 | Louroi Martinez v Adrian Andreev | 5-7,6-7 |
| Challenger - Oeiras | 2021/04/08 10:00 | Pedro Cachin v Adrian Andreev | 6-2,6-4 |
| Challenger - Oeiras | 2021/04/06 12:00 | Chun Hsin Tseng v Adrian Andreev | 6-1,6-7,3-6 |
| Challenger - Oeiras - Qualifikation | 2021/04/04 11:30 | Eduard Esteve Lobato v Adrian Andreev | 3-6,4-6 |
| ITF - M25 - Biel | 2021/03/30 13:50 | Adrian Andreev v Tim Van Rijthoven | 3-6,1-6 |
| Challenger - Lille | 2021/03/21 09:00 | Adrian Andreev v Christopher Heyman | 4-6,6-3,3-6 |
| Davis Cup | 2021/03/05 15:10 | Adrian Andreev v Gerardo L Villasenor | 6-3,1-6,2-6 |