Round: 54 Ground: Clay
| ITF Finland F1 | 2018/07/30 07:00 | Karl Kiur Saar v Aaron Prandstetter | 6-1,6-1 |
| ITF Finland F1 Qual | 2018/07/29 07:00 | Jussi Tiainen v Aaron Prandstetter | 3-6,4-6 |
| ITF Finland F1 Qual | 2018/07/28 07:00 | Michal Skonieczny v Aaron Prandstetter | 3-6,1-6 |
| ITF Finland F3 Qual | 2017/08/12 07:00 | Patrik Brydolf v Aaron Prandstetter | 6-4,6-0 |
| ITF Austria F8 | 2016/08/27 12:00 | Lucas Miedler v Aaron Prandstetter | 6-2,6-0 |
| ITF Finland F1 Qual | 2018/07/28 07:00 | Hermanni Tiainen v Jason Sormunen | 3-6,0-6 |
| ITF Lithuania F1 | 2018/07/21 10:00 | Hermanni Tiainen v Matheus P De Almeida | 3-6,0-6 |
| ITF Turkey F20 Qual | 2018/05/21 07:30 | Cengiz Aksu v Hermanni Tiainen | 6-1,6-1 |
| ITF Turkey F20 Qual | 2018/05/20 09:00 | Hermanni Tiainen v Nabi Kustepe | 6-2,6-0 |
| ITF Turkey F20 Qual | 2018/05/19 07:30 | Hermanni Tiainen v Jesse Paul Krattiger | 6-4,6-4 |
| ITF Turkey F19 Qual | 2018/05/12 07:30 | Sergey Bolotov v Hermanni Tiainen | 6-4,6-4 |
| ITF Turkey F17 | 2018/04/29 07:30 | Linus Krohn v Hermanni Tiainen | 7-5,6-7,6-4 |
| ITF Greece F5 | 2018/03/24 07:30 | Hermanni Tiainen v Duje Ajdukovic | 0-6,4-6 |