Stadium: Court 3 Round: 62 Ground: Clay
| ITF Germany F8 Qual | 2018/07/15 12:00 | Mislav Bosnjak v Leon Hoeveler | 3-6,6-1,2-6 |
| ITF Spain F15 | 2018/06/13 18:15 | Mislav Bosnjak v Fernando Bogajo | 7-6,3-6,5-7 |
| ITF Spain F15 Qual | 2018/06/11 09:30 | Mislav Bosnjak v Maximilian Gatev | 6-7,7-6,6-1 |
| ITF Spain F15 Qual | 2018/06/09 07:00 | Mislav Bosnjak v Manuel Luis Lamelas | 6-4,7-6 |
| ITF Tunisia F21 | 2018/05/27 09:00 | Vasil Kirkov v Mislav Bosnjak | 5-7,6-4,6-1 |
| ITF Tunisia F21 | 2018/05/26 09:00 | Mislav Bosnjak v Brandon Murphy | 6-3,6-2 |
| ITF Tunisia F20 | 2018/05/19 09:00 | Davide Albertoni v Mislav Bosnjak | 3-6,6-3,6-3 |
| ITF Tunisia F19 | 2018/05/13 09:00 | Ergi Kirkin v Mislav Bosnjak | 4-6,6-2,6-4 |
| ITF Czech Republic F4 Qual | 2018/06/23 08:00 | Patrik Hartmeier v Tomas Jirousek | 6-7,3-6 |
| ITF Germany F4 | 2018/06/18 10:00 | Patrik Hartmeier v Vadym Kalyuzhnyy | 4-6,2-6 |
| ITF Portugal F3 | 2018/03/05 17:00 | Vullnet Tashi v Patrik Hartmeier | 4-6,7-5,6-4 |
| ITF Portugal F3 | 2018/03/03 12:30 | Jesse Paul Krattiger v Patrik Hartmeier | 1-6,2-6 |
| ITF Portugal F2 Qual | 2018/02/24 12:30 | Francisco P Bascon v Patrik Hartmeier | 6-4,6-4 |
| ITF Portugal F1 | 2018/02/18 13:00 | Yanik Kaelin v Patrik Hartmeier | 7-6,6-3 |
| ITF Portugal F1 | 2018/02/17 12:30 | Patrik Hartmeier v Joao Graca | 6-3,6-7,6-2 |
| ITF Switzerland F1 Qual | 2018/02/03 11:30 | Patrik Hartmeier v Joel Javier Alt | 3-6,6-7 |