Stadium: Court 2 Round: 25 Ground: Clay
| ITF Finland F2 Qual | 2018/08/05 07:00 | Ville-Petteri Ahti v Martins Rocens | 4-6,4-6 |
| ITF Finland F2 Qual | 2018/08/04 07:00 | Ville-Petteri Ahti v Leevi Saatela | 6-4,6-1 |
| ITF Finland F1 | 2018/08/01 12:00 | Ettore Capello v Ville-Petteri Ahti | 6-4,6-3 |
| ITF Finland F1 | 2018/07/31 10:05 | Ville-Petteri Ahti v Peter Goldsteiner | 2-6,6-4,6-4 |
| ITF Hungary F2 Qual | 2018/05/13 08:00 | Ville-Petteri Ahti v Tino Kovacic | 6-7,3-6 |
| ITF Hungary F1 | 2018/05/08 09:05 | Scott Puodziunas v Ville-Petteri Ahti | 6-3,6-4 |
| ITF Hungary F1 Qual | 2018/05/07 09:35 | Ville-Petteri Ahti v Gasper Bezjak | 6-2,6-3 |
| ITF Hungary F1 Qual | 2018/05/06 08:00 | Ville-Petteri Ahti v Stefan Suvajac | 6-4,6-0 |
| Challenger Sopot Qual | 2018/07/30 08:30 | Renzo Olivo v Karl Friberg | 6-4,7-6 |
| Challenger Tampere | 2018/07/21 11:40 | Tom Kocevar-Desman v Karl Friberg | 6-4,7-6 |
| ITF Estonia F1 | 2018/07/18 07:00 | Karl Friberg v Denis Klok | 4-6,6-3,5-7 |
| ITF Estonia F1 | 2018/07/17 08:45 | Martins Rocens v Karl Friberg | 5-7,0-6 |
| Challenger Bastad Qual | 2018/07/08 11:40 | Jules Okala v Karl Friberg | 6-0,6-0 |
| Challenger Bastad Qual | 2018/07/08 08:15 | Karl Friberg v Antoine Bellier | 6-2,6-4 |
| Challenger Bastad Qual | 2018/07/07 10:05 | Ruben Gonzales v Karl Friberg | 2-6,1-6 |
| Challenger Poprad Tatry Qual | 2018/06/16 12:20 | Karl Friberg v Vit Kopriva | 1-6,1-6 |