Round: 62 Ground: Clay
| ITF Slovakia F2 | 2016/07/31 06:30 | Kevin Portmann v Fabian Marozsan | 3-6,2-6 |
| ITF Hungary F1 Qual | 2016/04/17 08:00 | Martin Zeljenka v Kevin Portmann | 6-0,6-0 |
| ITF USA F8 Qual | 2016/02/19 17:00 | Kevin Portmann v Reilly Opelka | 1-6,0-6 |
| ITF Austria F8 | 2015/08/15 07:30 | Marco De Rossi v Kevin Portmann | 6-1,6-0 |
| ITF Turkey F17 | 2015/04/25 08:00 | Kevin Portmann v Omer Berk Gorgun | 3-6,3-6 |
| ITF France F20 Qual | 2014/09/20 07:00 | Joel Vincent Link v Kevin Portmann | 6-3,6-1 |
| ITF Austria F5 Qual | 2014/07/19 10:00 | Alexander Weis v Kevin Portmann | 6-1,6-1 |
| ITF Slovakia F1 | 2016/07/28 13:10 | Marek Gengel v Pavel Nejedly | 3-6,1-6 |
| ITF Slovakia F1 | 2016/07/27 12:05 | Cristobal S-Corvalan v Marek Gengel | 6-4,4-6,1-6 |
| ITF Slovakia F1 | 2016/07/25 08:00 | Marek Gengel v Davide Pontoglio | 6-3,7-5 |
| ITF Slovakia F1 | 2016/07/24 12:00 | Marek Gengel v William Ma | 6-4,6-3 |
| ITF Poland F2 | 2016/06/02 09:20 | Marek Gengel v Grzegorz Panfil | 1-6,7-5,4-6 |
| ITF Poland F2 | 2016/05/31 08:00 | Szymon Walkow v Marek Gengel | 0-6,6-4,1-6 |
| ITF Poland F2 | 2016/05/29 09:00 | Piotr Grynkowski v Marek Gengel | 5-7,4-6 |
| ITF Czech Republic F2 | 2016/05/19 08:30 | Sumit Nagal v Marek Gengel | 7-6,4-6,6-4 |