Stadium: Center Court Round: 26 Ground: Clay
| ITF Switzerland F3 | 2018/08/22 14:45 | Patrik Hartmeier v Maurizio Speziali | 6-4,6-3 |
| ITF Switzerland F3 | 2018/08/19 11:00 | Keivon Tabrizi v Patrik Hartmeier | 4-6,4-6 |
| ITF Belgium F6 Qual | 2018/07/28 07:00 | Benjamin Dhoe v Patrik Hartmeier | 7-6,2-6,7-6 |
| ITF Germany F9 | 2018/07/22 17:30 | Patrik Hartmeier v Tillmann Erdbories | 0-6,1-6 |
| ITF Germany F9 | 2018/07/22 11:00 | Mislav Bosnjak v Patrik Hartmeier | 6-7,1-6 |
| 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 Switzerland F3 | 2018/08/22 11:25 | Benjamin Pietri v Alen Avidzba | 3-6,6-4,3-6 |
| Challenger Meerbusch Qual | 2018/08/12 08:00 | Alen Avidzba v Evgeny Tyurnev | 6-0,4-6,6-7 |
| Challenger Meerbusch Qual | 2018/08/11 08:00 | Vit Kopriva v Alen Avidzba | 6-7,6-3,5-7 |
| Challenger Pullach | 2018/08/08 12:00 | Alen Avidzba v Gianluca Mager | 6-7,3-6 |
| Challenger Pullach | 2018/08/06 15:45 | Alen Avidzba v Florian Mayer | 6-3,3-6,6-3 |
| Challenger Pullach Qual | 2018/08/06 10:00 | Alen Avidzba v Kevin Krawietz | 1-6,2-6 |
| Challenger Pullach Qual | 2018/08/05 10:00 | Pol Toledo Bague v Alen Avidzba | 4-6,4-6 |
| Challenger Pullach Qual | 2018/08/04 12:10 | Alen Avidzba v Christian Seraphim | 6-3,6-4 |