Stadium: MTA 16 Round: 62 Ground: Clay
| ITF M25 Pardubice | 2020/09/27 09:00 | Matic Spec v Daniel Siniakov | 1-6,6-2,13-11 |
| ITF M25 Prague | 2020/09/13 09:00 | Wojciech Marek v Daniel Siniakov | 6-0,6-4 |
| ITF M15 Milovice | 2019/11/12 12:25 | Daniel Siniakov v Jakob Aichhorn | 6-7,0-6 |
| ITF M15 Prague | 2019/11/07 10:55 | Daniel Siniakov v Oleksii Krutykh | 6-7,2-6 |
| ITF M15 Prague | 2019/11/06 15:15 | Dominik Boehler v Daniel Siniakov | 6-3,5-7,6-7 |
| ITF M15 Prague | 2019/11/05 10:15 | Daniel Siniakov v Federico Arnaboldi | 6-4,6-1 |
| ITF M15 Prague | 2019/11/04 09:00 | Matvey Khomentovskiy v Daniel Siniakov | 1-6,2-6 |
| ITF M15 Opava | 2019/10/30 16:35 | Antonin Stepanek v Daniel Siniakov | 7-6,6-3 |
| ITF M15 Antalya | 2020/12/01 07:00 | Dan Alexandru Tomescu v Alexander Donski | 4-6,4-6 |
| Eastern European Championship | 2020/11/27 15:45 | Dan Alexandru Tomescu v Duje Kekez | 1-6,7-6,2-6 |
| Eastern European Championship | 2020/11/26 15:20 | Dan Alexandru Tomescu v Boris Butulija | 5-7,2-6 |
| Eastern European Championship | 2020/11/24 16:40 | Jaimee Floyd Angele v Dan Alexandru Tomescu | 2-6,7-6,7-5 |
| Eastern European Championship | 2020/11/20 14:00 | Dan Alexandru Tomescu v Luka Pavlovic | 6-2,6-3 |
| Eastern European Championship | 2020/11/19 15:30 | Mirza Basic v Dan Alexandru Tomescu | 6-1,6-2 |
| Eastern European Championship | 2020/11/17 14:00 | Ronan Joncour v Dan Alexandru Tomescu | 3-6,2-6 |
| Eastern European Championship | 2020/11/16 14:00 | Dan Alexandru Tomescu v Yanki Erel | 5-7,1-6 |