Stadium: Court 1 Round: 27
| ITF Portugal F20 | 2018/10/12 08:30 | Goldsteiner, Peter v Tomislav E Papac | 6-4,6-0 |
| ITF Portugal F20 | 2018/10/10 11:00 | Goldsteiner, Peter v Brandao, Filipe | 7-6,6-1 |
| ITF Italy F28 | 2018/09/18 12:00 | Goldsteiner, Peter v Billy Harris | 7-6,4-6,3-6 |
| ITF Italy F27 | 2018/09/11 12:00 | Ceppellini, Alessandro v Goldsteiner, Peter | 7-6,4-6,6-1 |
| ITF Italy F26 | 2018/09/04 13:55 | Goldsteiner, Peter v Gijs Brouwer | 2-6,3-6 |
| ITF Finland F3 | 2018/08/14 13:25 | Goldsteiner, Peter v Eero Vasa | 1-6,6-1,1-6 |
| ITF Finland F2 | 2018/08/07 09:00 | Goldsteiner, Peter v Botezan, George | 6-3,6-7,4-6 |
| ITF Finland F1 | 2018/07/31 10:05 | Ahti, Ville-Petteri v Goldsteiner, Peter | 2-6,6-4,6-4 |
| ITF Portugal F20 | 2018/10/11 16:55 | Schmidt, Gabriel v Gil, Fred | 7-6,7-6 |
| ITF Portugal F20 | 2018/10/09 10:45 | Schmidt, Gabriel v Goncalo Falcao | 6-3,7-6 |
| ITF Germany F14 | 2018/10/03 10:00 | Christoph Negritu v Schmidt, Gabriel | 6-3,7-6 |
| ITF Germany F13 | 2018/08/22 08:00 | Lenz, Julian v Schmidt, Gabriel | 6-3,6-3 |
| ITF Austria F6 | 2018/08/09 10:45 | Petrone, Alessandro v Schmidt, Gabriel | 6-3,7-6 |
| ITF Austria F6 | 2018/08/08 09:00 | Schmidt, Gabriel v Filip Duda | 6-2,6-4 |
| ITF Austria F6 | 2018/08/07 09:00 | Schmidt, Gabriel v Battaglino, Stefano | 6-2,3-6,6-2 |
| ITF Austria F3 | 2018/07/16 12:45 | Vejvara, Lukas v Schmidt, Gabriel | 5-7,4-6 |