Stadium: Court 10 Round: 25 Ground: Clay
| ITF Hungary F2 Qual | 2018/05/13 08:00 | Ahti, Ville-Petteri v Tino Kovacic | 6-7,3-6 |
| ITF Hungary F1 | 2018/05/08 09:05 | Puodziunas, Scott v Ahti, Ville-Petteri | 6-3,6-4 |
| ITF Hungary F1 Qual | 2018/05/07 09:35 | Ahti, Ville-Petteri v Bezjak, Gasper | 6-2,6-3 |
| ITF Hungary F1 Qual | 2018/05/06 08:00 | Ahti, Ville-Petteri v Suvajac, Stefan | 6-4,6-0 |
| ITF Greece F4 | 2018/03/17 07:30 | Summaria, Corrado v Ahti, Ville-Petteri | 6-3,6-2 |
| ITF Greece F3 | 2018/03/11 08:00 | Moreno, Federico v Ahti, Ville-Petteri | 3-6,6-3,6-4 |
| ITF Greece F3 | 2018/03/10 07:30 | Kozyrev, Klim v Ahti, Ville-Petteri | 0-6,1-6 |
| ITF Finland F4 | 2017/11/13 09:15 | Ahti, Ville-Petteri v Evgeny Karlovskiy | 6-7,3-6 |
| ITF Austria F4 | 2018/07/23 10:00 | Goldsteiner, Peter v Haim, Matthias | 7-5,4-6,6-7 |
| Challenger Braunschweig Qual | 2018/07/07 07:30 | Goldsteiner, Peter v Erdbories, Tillmann | 1-6,4-6 |
| ITF Netherlands F2 | 2018/07/04 09:30 | Goldsteiner, Peter v van Den Berg, Bart | 3-6,6-7 |
| ITF Italy F16 | 2018/06/27 14:20 | Goldsteiner, Peter v Cutuli, Domenico | 6-4,1-6,2-6 |
| Challenger Poprad Tatry Qual | 2018/06/16 16:25 | Goldsteiner, Peter v David Poljak | 0-6,7-6,4-6 |
| Challenger Poprad Tatry Qual | 2018/06/16 11:00 | Goldsteiner, Peter v Samuel Puskar | 6-3,4-6,6-4 |
| Challenger Prostejov Qual | 2018/06/03 10:00 | Goldsteiner, Peter v Satral, Jan | 3-6,2-6 |
| ITF Bosnia and Herzegovina F3 | 2018/05/30 15:10 | Elmar Ejupovic v Goldsteiner, Peter | 6-1,6-1 |