| ITF Austria F1 | 2018/06/30 11:00 | Sven Lah v Vital Flurin Leuch | 6-1,6-0 |
| ITF Czech Republic F4 | 2018/06/27 11:55 | Peter Torebko v Sven Lah | 7-5,6-3 |
| ITF Czech Republic F4 | 2018/06/25 09:40 | Danylo Kalenichenko v Sven Lah | 4-6,4-6 |
| ITF Czech Republic F4 Qual | 2018/06/24 11:35 | Gabor Borsos v Sven Lah | 4-6,5-7 |
| ITF Czech Republic F4 Qual | 2018/06/23 08:00 | Roberto Rosales v Sven Lah | 4-6,1-6 |
| ITF Czech Republic F4 Qual | 2018/06/23 08:00 | Eric Tudor A.Pandelea v Sven Lah | 1-6,0-6 |
| ITF Hungary F4 Qual | 2018/06/11 08:00 | Strahinja Rakic v Sven Lah | 7-6,6-3 |
| Challenger Portoroz | 2017/08/09 15:40 | Sven Lah v Franko Skugor | 6-7,3-6 |
| ITF Austria F1 | 2018/06/30 11:00 | Patric Prinoth v Jakob Aichhorn | 2-6,0-6 |
| ITF Italy F13 | 2018/06/03 08:00 | Alessandro Coppini v Jakob Aichhorn | 6-4,6-1 |
| ITF Italy F13 | 2018/06/02 07:30 | Marco De Rossi v Jakob Aichhorn | 7-6,4-6,1-6 |
| ITF Poland F1 | 2018/04/30 07:00 | Alexandru Vasile Manole v Jakob Aichhorn | 6-1,6-3 |
| ITF Poland F1 | 2018/04/28 07:00 | Norbert Tadyszak v Jakob Aichhorn | 0-6,6-7 |
| ITF Croatia F1 | 2018/03/04 09:00 | Jakob Aichhorn v Nikolas Lahky | 6-1,6-2 |
| ITF Italy F1 | 2018/02/26 10:00 | Luca Giacomini v Jakob Aichhorn | 6-1,7-6 |
| ITF Italy F1 Qual | 2018/02/25 14:00 | Federico Arnaboldi v Jakob Aichhorn | 4-6,6-0,6-7 |