Stadium: Court 1 Round: 25 Ground: Clay
| ITF Austria F1 | 2018/07/03 09:15 | Mario Vilella Martinez v Alexander Weis | 6-1,6-4 |
| ITF Tunisia F25 | 2018/06/27 11:50 | Nino Portales v Alexander Weis | 6-3,6-2 |
| ITF Italy F15 | 2018/06/21 10:50 | Peter Heller v Alexander Weis | 6-3,6-7,6-3 |
| ITF Italy F14 | 2018/06/12 08:00 | Manuel Guinard v Alexander Weis | 6-0,6-7,6-4 |
| ITF Turkey F22 | 2018/06/06 09:20 | Christopher Heyman v Alexander Weis | 3-6,6-0,6-4 |
| ITF Turkey F19 | 2018/05/17 09:20 | Marsel Ilhan v Alexander Weis | 2-6,6-4,6-2 |
| ITF Turkey F19 | 2018/05/15 07:00 | Mats Rosenkranz v Alexander Weis | 3-6,0-6 |
| ITF Turkey F18 | 2018/05/10 07:30 | Alexander Weis v Aslan Karatsev | 1-6,5-7 |
| ITF Austria F1 | 2018/07/04 11:30 | Jonas Trinker v Riccardo Bellotti | 6-3,4-6,2-6 |
| ITF Austria F1 | 2018/07/03 13:00 | Jonas Trinker v Arturs Lazdins | 6-3,6-4 |
| ITF Turkey F22 | 2018/06/07 07:30 | Jonas Trinker v Wilson Leite | 1-6,2-6 |
| ITF Turkey F22 | 2018/06/05 09:20 | Marc Dijkhuizen v Jonas Trinker | 1-6,3-6 |
| ITF Turkey F21 | 2018/05/31 11:10 | Christopher Heyman v Jonas Trinker | 6-7,6-3,7-6 |
| ITF Turkey F21 | 2018/05/29 07:30 | Mert Naci Turker v Jonas Trinker | 2-6,1-6 |
| ITF Sweden F3 | 2018/05/22 10:10 | Jonas Trinker v Alexander Ritschard | 3-6,1-6 |
| ITF Sweden F3 Qual | 2018/05/20 09:00 | Jonas Trinker v Adam Heinonen | 7-6,6-1 |