Stadium: Court 4 Round: 54 Ground: Clay
| ITF M25 Schlieren | 2019/08/19 10:00 | Kevin Portmann v Neil Oberleitner | 1-6,0-6 |
| ITF M15 Tabarka | 2019/08/05 07:30 | Sergey Bolotov v Kevin Portmann | 6-1,6-0 |
| ITF M15 Tabarka | 2019/07/30 08:00 | Alexander Boborykin v Kevin Portmann | 6-0,6-0 |
| ITF M15 Sharm El Sheikh | 2019/01/21 09:30 | Alessandro Ingarao v Kevin Portmann | 6-3,6-0 |
| ITF Qatar F6 | 2018/12/15 12:25 | Kevin Portmann v Bharath Nishok Kumaran | 2-6,2-6 |
| ITF Egypt F31 | 2018/12/08 09:00 | Adria V. Ferrer v Kevin Portmann | 6-2,6-0 |
| ITF Egypt F30 | 2018/12/01 09:00 | Kevin Portmann v Gabriel Sanchez | 0-6,0-6 |
| ITF Egypt F29 | 2018/11/26 08:00 | Dennis Uspensky v Kevin Portmann | 6-0,6-1 |
| ITF M15 Ueberlingen | 2019/08/19 12:00 | Giordan Kunz v Maik Steiner | 0-6,2-6 |
| ITF M15 Ueberlingen | 2019/08/19 08:00 | Giordan Kunz v Dominik Langmajer | 7-5,6-4 |
| ITF M15 Trier | 2019/08/12 08:00 | Giordan Kunz v Marlon Vankan | 0-6,0-6 |
| ITF M25 Bolzano | 2019/07/29 15:05 | Giordan Kunz v Manuel Mazza | 2-6,1-6 |
| ITF M15 Bad Schussenried | 2019/07/22 08:00 | Giordan Kunz v Kai Lemstra | 1-6,1-6 |
| ITF M15 Kramsach | 2019/07/15 08:00 | Alessandro Ragazzi v Giordan Kunz | 4-6,6-2,10-7 |
| ITF M15 Vilnius | 2019/07/08 07:00 | Quentin Folliot v Giordan Kunz | 6-1,6-0 |
| ITF M15 Antalya | 2019/05/07 07:15 | Piotr Grynkowski v Giordan Kunz | 6-2,6-3 |