Stadium: Court 10 Round: 25 Ground: Clay
| ITF Estonia F2 | 2018/10/28 09:00 | Zvonimir Oreskovic v Aleksas Tverijonas | 6-4,5-7,1-6 |
| ITF Italy F21 Qual | 2018/07/28 14:45 | Zvonimir Oreskovic v Manuel Bernard | 3-6,6-2,7-6 |
| ITF Austria F1 | 2018/06/30 11:00 | Luca Staeheli v Zvonimir Oreskovic | 6-0,6-1 |
| ITF Bosnia and Herzegovina F3 Qual | 2018/05/28 12:55 | Manfred Fellin v Zvonimir Oreskovic | 6-2,3-6,5-7 |
| ITF Bosnia and Herzegovina F3 Qual | 2018/05/27 08:00 | Zvonimir Oreskovic v Milos Vukovic | 6-4,6-0 |
| ITF Bosnia and Herzegovina F3 Qual | 2018/05/26 07:00 | Zvonimir Oreskovic v Stefan Dragovic | 6-4,7-5 |
| ITF Bulgaria F1 | 2018/05/17 10:45 | Zvonimir Oreskovic v Calin Manda | 1-6,1-6 |
| ITF Bulgaria F1 | 2018/05/16 08:52 | Yan Sabanin v Zvonimir Oreskovic | 1-1 |
| ITF M15 Porec | 2019/03/12 09:00 | Constantin Schmitz v Francesco Bessire | 6-1,6-1 |
| ITF M15 Porec | 2019/03/11 11:35 | Constantin Schmitz v Johannes Bangratz | 6-2,6-1 |
| ITF M15 Faro | 2019/02/27 10:00 | Alvaro Lopez San Martin v Constantin Schmitz | 6-4,6-0 |
| ITF M15 Faro | 2019/02/26 10:00 | Constantin Schmitz v Jonathan Gray | 6-2,6-2 |
| ITF M15 Faro | 2019/02/25 12:15 | Constantin Schmitz v Omar Giacalone | 6-1,6-3 |
| ITF M15 Vale Do Lobo | 2019/02/18 15:30 | Constantin Schmitz v Vullnet Tashi | 4-6,6-4,11-13 |
| ITF M15 Kaarst | 2019/02/08 16:05 | Robin Stanek v Constantin Schmitz | 6-0,6-4 |
| ITF M15 Kaarst | 2019/02/07 13:00 | Petr Nouza v Constantin Schmitz | 4-6,6-1,3-6 |