Stadium: Court 4 Round: 44 Ground: Clay
| ITF M25 Prague | 2020/09/13 08:00 | Kiyamov, Timur v Spec, Matic | 3-6,2-6 |
| ITF M15 Anif | 2020/08/24 08:00 | Spec, Matic v Hampel, Lenny | 3-6,1-6 |
| ITF M15 Anif | 2020/08/23 12:00 | Galoppini, Davide v Spec, Matic | 3-6,4-6 |
| ITF M15 Anif | 2020/08/23 07:00 | Spec, Matic v de Rossi, Marco | 7-6,6-0 |
| Vogau, Singles Qualifying M-ITF-AUT-04A | 2020/08/17 11:30 | Igor Sijsling v Spec, Matic | 6-4,6-4 |
| Vogau, Singles Qualifying M-ITF-AUT-04A | 2020/08/16 12:00 | Noah Thurner v Spec, Matic | 3-6,4-6 |
| ITF M15 Cancun | 2020/03/11 15:55 | El Midhawy, Adam v Spec, Matic | 7-5,4-6,6-3 |
| ITF M15 Cancun | 2020/02/22 14:30 | Petit, Gabriel v Spec, Matic | 6-2,4-6,7-5 |
| ITF M25 Prague | 2020/09/13 14:15 | Stanek, Robin v Veldheer, Mick | 6-4,6-2 |
| German Masters | 2020/08/28 09:45 | Stanek, Robin v Quentin Folliot | 6-1,6-1 |
| German Masters | 2020/08/27 08:05 | Michael Geerts v Stanek, Robin | 6-3,3-6,2-6 |
| German Masters | 2020/08/26 12:50 | Alexey Vatutin v Stanek, Robin | 7-5,6-2 |
| German Masters | 2020/08/25 16:05 | Stanek, Robin v Peters, Flemming | 6-2,6-2 |
| German Masters | 2020/08/24 11:50 | Elmar Ejupovic v Stanek, Robin | 6-3,6-4 |
| ITF - M15 Sharm El Sheikh | 2020/02/22 08:00 | Stanek, Robin v Jacopo Berrettini | 7-5,6-4 |
| ITF - M15 Sharm El Sheikh | 2020/02/21 08:00 | Stanek, Robin v Daniil Glinka | 6-0,6-2 |