Stadium: Court 2 Round: 25 Ground: Clay
| Challenger Braunschweig Qual | 2018/07/07 07:30 | Peter Goldsteiner v Tillmann Erdbories | 1-6,4-6 |
| ITF Netherlands F2 | 2018/07/04 09:30 | Peter Goldsteiner v Bart Van Den Berg | 3-6,6-7 |
| ITF Italy F16 | 2018/06/27 14:20 | Peter Goldsteiner v Mirko Cutuli | 6-4,1-6,2-6 |
| Challenger Poprad Tatry Qual | 2018/06/16 16:25 | Peter Goldsteiner v David Poljak | 0-6,7-6,4-6 |
| Challenger Poprad Tatry Qual | 2018/06/16 11:00 | Peter Goldsteiner v Samuel Puskar | 6-3,4-6,6-4 |
| Challenger Prostejov Qual | 2018/06/03 10:00 | Peter Goldsteiner v Jan Satral | 3-6,2-6 |
| ITF Bosnia and Herzegovina F3 | 2018/05/30 15:10 | Elmar Ejupovic v Peter Goldsteiner | 6-1,6-1 |
| ITF Sweden F3 | 2018/05/21 08:00 | Dan Added v Peter Goldsteiner | 6-4,6-3 |
| ITF Austria F3 | 2018/07/18 15:05 | Alexander Shevchenko v Matthias Haim | 6-4,7-5 |
| ITF Austria F3 | 2018/07/17 15:55 | Bjorn Nareyka v Matthias Haim | 0-6,4-6 |
| ITF Germany F7 | 2018/07/15 12:00 | Mario Vilella Martinez v Matthias Haim | 3-6,4-6 |
| ITF Germany F7 | 2018/07/14 13:00 | Matias Franco Descotte v Matthias Haim | 3-6,4-6 |
| ITF Germany F7 | 2018/07/13 11:00 | Matthias Haim v Juan Ignacio Galarza | 6-2,5-7,6-3 |
| ITF Germany F7 | 2018/07/12 11:00 | Matthias Haim v Aziz Kijametovic | 7-6,6-4 |
| ITF Germany F7 | 2018/07/11 09:00 | Matthias Haim v Michael Vrbensky | 7-6,6-4 |
| ITF Austria F1 | 2018/07/07 11:30 | Mario Vilella Martinez v Matthias Haim | 6-4,6-4 |