Stadium: Center Court Round: 44 Ground: Clay
| ITF M25 Pitesti | 2021/08/05 13:25 | Corentin Denolly v Dan Alexandru Tomescu | 7-6,6-4 |
| ITF M25 Pitesti | 2021/08/03 10:20 | Ioan Alexandru Chirita v Dan Alexandru Tomescu | 4-6,0-6 |
| ITF M15 Novi Sad | 2021/07/27 12:05 | Dan Alexandru Tomescu v Milan Macura | 6-2,6-4 |
| Challenger Iasi | 2021/07/13 07:00 | Dan Alexandru Tomescu v Filip Cristian Jianu | 4-6,3-6 |
| Challenger Iasi | 2021/07/12 08:00 | Bogdan Bobrov v Dan Alexandru Tomescu | 2-6,3-6 |
| Challenger Iasi | 2021/07/11 09:30 | Dan Alexandru Tomescu v Mathieu Perchicot | 6-3,6-4 |
| ITF M15 Genova | 2021/06/14 07:00 | Pascal Meis v Dan Alexandru Tomescu | 7-5,6-4 |
| ITF M15 Antalya | 2021/06/02 09:15 | Dan Alexandru Tomescu v Matteo Gigante | 6-7,2-6 |
| ITF M25 Pitesti | 2021/08/01 13:30 | Martin Zeljenka v Samuil Konov | 6-4,6-4 |
| ITF M15 Antalya | 2021/06/28 12:20 | Daniil Glinka v Samuil Konov | 6-3,6-1 |
| ITF M15 Antalya | 2021/06/27 06:30 | Sabit Suntic v Samuil Konov | 4-6,3-6 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 12:00 | Kuzey Cekirge v Samuil Konov | 6-3,4-6,7-5 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 06:00 | Vlad Andrei Dancu v Samuil Konov | 6-3,5-7,6-2 |
| UTR Pro Tennis Series Bucharest | 2021/06/02 13:00 | Valentin Vanta v Samuil Konov | 4-6,6-2,6-2 |
| ITF M15 Bucharest | 2021/05/24 08:00 | Samuil Konov v Taiyo Yamanaka | 4-6,0-6 |
| ITF M15 Antalya | 2021/03/21 07:00 | Samuil Konov v Vladislav Gorbatenko | 3-6,2-6 |