Stadium: Clay 7 Round: 62 Ground: Clay
| ITF Austria F4 | 2018/07/24 08:00 | Peter Heller v Gorazd Srbljak | 6-3,6-2 |
| ITF Austria F4 Qual | 2018/07/22 08:00 | Gorazd Srbljak v Bjorn Nareyka | 6-2,6-4 |
| ITF Austria F4 Qual | 2018/07/21 10:00 | Gorazd Srbljak v Nir Vodavoz | 6-1,6-1 |
| ITF Hungary F5 Qual | 2018/06/18 08:00 | Wilson Leite v Gorazd Srbljak | 6-1,6-2 |
| ITF Hungary F5 Qual | 2018/06/17 08:00 | Besir Durguti v Gorazd Srbljak | 1-6,2-6 |
| ITF Hungary F4 | 2018/06/12 12:30 | Sekou Bangoura v Gorazd Srbljak | 7-5,2-6,6-1 |
| ITF Hungary F4 Qual | 2018/06/11 09:30 | Martin Zeljenka v Gorazd Srbljak | 2-6,1-6 |
| ITF Hungary F4 Qual | 2018/06/10 11:00 | Constantin Christ v Gorazd Srbljak | 1-6,3-6 |
| ITF Italy F21 Qual | 2018/07/28 17:40 | Jonas Greif v Horst Rieder | 1-6,4-6 |
| ITF Austria F4 Qual | 2018/07/22 08:00 | Yvo Panak v Horst Rieder | 6-2,6-0 |
| ITF Austria F4 Qual | 2018/07/21 10:00 | Carlos Kelaidis v Horst Rieder | 3-6,6-3,3-6 |
| ITF Italy F19 | 2018/07/14 08:30 | Andrea Grazioso v Horst Rieder | 6-4,6-1 |
| ITF Austria F2 | 2018/07/07 08:00 | Horst Rieder v Alexey Aleshchev | 2-6,0-6 |
| ITF Austria F2 | 2018/07/07 07:15 | Bjorn Nareyka v Horst Rieder | 2-6,4-6 |
| ITF Turkey F19 | 2018/05/15 08:20 | Horst Rieder v Francois-Arthur Vibert | 4-6,1-6 |
| ITF Turkey F19 Qual | 2018/05/14 07:30 | Joel Cannell v Horst Rieder | 4-6,7-6,6-4 |