Stadium: Court 21 Round: 62 Ground: Clay
| ITF M25 Ricany | 2021/08/30 08:30 | Lambert Ruland v Jimmy Yang | 7-6,6-7,9-11 |
| ITF M25 Ricany | 2021/08/29 08:00 | Ondrej Horak v Lambert Ruland | 1-6,1-6 |
| Challenger Luedenscheid | 2021/08/15 13:30 | Lambert Ruland v Filip Cristian Jianu | 4-6,2-6 |
| ITF M15 Sozopol | 2021/09/13 08:00 | Samuil Konov v Adrian Mateo Bejenaru | 6-4,6-4 |
| ITF M25 Bacau | 2021/08/17 08:30 | Bogdan Borza v Adrian Mateo Bejenaru | 4-6,6-1,11-9 |
| ITF M15 Curtea de Arges | 2021/08/09 09:00 | Dan Alexandru Tomescu v Adrian Mateo Bejenaru | 6-2,6-0 |
| ITF M25 Pitesti | 2021/08/01 13:30 | Adrian Mateo Bejenaru v Vladimir Filip | 6-1,5-7,10-12 |
| ITF M15 Antalya | 2021/06/27 06:30 | Andrea Del Federico v Adrian Mateo Bejenaru | 6-4,6-4 |
| ITF M15 Antalya | 2021/06/20 07:00 | Adrian Mateo Bejenaru v Mert Naci Turker | 4-6,2-6 |
| ITF M15 Bucharest | 2021/05/24 09:30 | Adrian Mateo Bejenaru v Petru-Alexandru Luncanu | 6-3,1-6,4-10 |
| ITF M15 Bucharest | 2021/05/23 10:00 | Adrian Mateo Bejenaru v Gheorghe Claudiu Schinteie | 6-1,6-3 |