Stadium: Court 8 Round: 62 Ground: Clay
| ITF Netherlands F1 Qual | 2018/06/24 09:00 | Valentin Guenther v Bobbie De Goeijen | 2-6,3-6 |
| ITF Germany F4 | 2018/06/21 08:30 | Dominik Boehler v Valentin Guenther | 6-4,6-4 |
| ITF Germany F4 | 2018/06/19 14:35 | Valentin Guenther v Leon Hoeveler | 6-3,6-2 |
| ITF Turkey F21 | 2018/05/29 09:10 | Mats Rosenkranz v Valentin Guenther | 6-0,3-6,6-4 |
| ITF Turkey F20 | 2018/05/24 07:30 | Paul Woerner v Valentin Guenther | 6-2,6-3 |
| ITF Turkey F20 | 2018/05/23 07:30 | Louroi Martinez v Valentin Guenther | 2-6,0-6 |
| ITF Turkey F19 | 2018/05/15 08:25 | Koray Kirci v Valentin Guenther | 7-5,6-3 |
| ITF Egypt F14 | 2018/04/19 08:00 | Valentin Guenther v Pablo Vivero Gonzalez | 2-6,6-7 |
| ITF Netherlands F2 Qual | 2018/06/30 09:30 | Thorsten Sollie v Nicolas Zaidman | 6-3,7-5 |
| ITF Germany F2 Qual | 2018/01/21 13:00 | Kenneth Raisma v Thorsten Sollie | 6-2,4-6,6-3 |
| ITF Germany F2 Qual | 2018/01/21 08:30 | Thorsten Sollie v Patrick Mayer | 3-6,6-4,6-2 |
| ITF Netherlands F5 | 2017/08/13 11:00 | Giovanni Rizzuti v Thorsten Sollie | 6-2,6-3 |
| ITF Netherlands F5 | 2017/08/12 08:00 | Thorsten Sollie v Marvin Schramm | 6-0,6-4 |
| ITF Netherlands F4 | 2017/07/08 08:00 | Joris Bodin v Thorsten Sollie | 7-6,0-6,7-5 |
| ITF Netherlands F3 | 2017/07/03 12:00 | Thorsten Sollie v Sem Verbeek | 3-6,6-3,6-7 |
| ITF Netherlands F3 | 2017/07/02 08:00 | Caspar Schuetze v Thorsten Sollie | 2-6,1-6 |