Stadium: Court 7 Round: 54 Ground: Clay
| ITF Finland F4 Qual | 2017/11/11 08:00 | Gorazd Srbljak v Peter Sillanpaa | 6-3,6-0 |
| ITF Finland F4 Qual | 2016/11/12 23:00 | Peter Sillanpaa v Masi Sarpola | 3-6,2-6 |
| ITF Finland F3 Qual | 2016/08/12 22:00 | David Volfson v Peter Sillanpaa | 6-1,6-1 |
| ITF Finland F1 Qual | 2016/07/30 10:00 | Peter Sillanpaa v Johan Claesson | 3-6,6-3,5-7 |
| ITF Finland F3 | 2015/08/17 11:40 | Alexander Vasilenko v Peter Sillanpaa | 6-3,6-1 |
| ITF Finland F1 Qual | 2015/08/01 07:00 | Verneri Tuomi v Peter Sillanpaa | 6-1,6-2 |
| ITF Finland F3 Qual | 2014/08/16 10:00 | Joel Popov v Peter Sillanpaa | 6-3,6-3 |
| ITF Greece F5 | 2018/03/24 07:30 | Hermanni Tiainen v Duje Ajdukovic | 0-6,4-6 |
| ITF Greece F3 | 2018/03/10 10:00 | Evan Fragistas v Hermanni Tiainen | 6-1,6-1 |
| ITF Finland F4 Qual | 2017/11/11 11:00 | Alexey Aleshchev v Hermanni Tiainen | 7-6,6-3 |
| ITF Finland F3 Qual | 2017/08/12 07:00 | Panu Virtanen v Hermanni Tiainen | 6-3,6-2 |
| ITF Finland F2 | 2017/08/08 11:00 | Marco Bortolotti v Hermanni Tiainen | 6-3,6-1 |
| ITF Finland F2 Qual | 2017/08/07 07:00 | Ricardo David Mayagoitia v Hermanni Tiainen | 4-6,0-6 |
| ITF Finland F1 Qual | 2017/07/29 09:30 | William Genesen v Hermanni Tiainen | 6-3,6-2 |
| ITF Estonia F1 | 2017/07/22 13:00 | Julius Tverijonas v Hermanni Tiainen | 6-2,6-1 |