Stadium: Court 1 Round: 25 Ground: Clay
| ITF Austria F2 | 2016/07/11 10:30 | Filippo Leonardi v Nik Razborsek | 0-6,4-6 |
| ITF Italy F13 | 2018/06/06 15:55 | Manuel Guinard v Filippo Leonardi | 6-4,6-3 |
| ITF Italy F13 | 2018/06/05 09:30 | Filippo Leonardi v Andrea Guerrieri | 6-0,6-3 |
| ITF Italy F10 | 2018/05/16 11:30 | Riccardo Balzerani v Filippo Leonardi | 6-1,7-6 |
| ITF Italy F10 | 2018/05/15 14:55 | Pasquale De Giorgio v Filippo Leonardi | 4-6,0-6 |
| ITF Italy F4 | 2018/03/21 14:00 | Filippo Leonardi v Hugo Dellien | 3-6,0-6 |
| ITF Italy F3 | 2018/03/15 13:00 | Filippo Leonardi v Martin Cuevas | 4-6,6-3,1-6 |
| ITF Italy F3 | 2018/03/13 14:45 | Marco De Rossi v Filippo Leonardi | 3-6,5-7 |
| ITF Tunisia F6 | 2018/02/14 09:00 | Filippo Leonardi v Anis Ghorbel | 2-6,4-6 |
| ITF Bosnia and Herzegovina F3 | 2018/06/01 13:00 | Elmar Ejupovic v Nik Razborsek | 6-3,6-4 |
| ITF Bosnia and Herzegovina F3 | 2018/05/31 11:00 | Marko Vujic v Nik Razborsek | 1-6,0-6 |
| ITF Bosnia and Herzegovina F3 | 2018/05/30 09:00 | Johan Nikles v Nik Razborsek | 1-6,5-7 |
| ITF Turkey F16 | 2018/04/29 07:30 | Nik Razborsek v Artem Smirnov | 6-3,6-4 |
| ITF Turkey F16 | 2018/04/27 07:30 | Marsel Ilhan v Nik Razborsek | 1-6,3-6 |
| ITF Turkey F16 | 2018/04/26 09:15 | Nik Razborsek v Tomislav Jotovski | 6-3,6-4 |
| ITF Turkey F16 | 2018/04/25 07:30 | Nik Razborsek v Alexander Erler | 3-6,6-3,6-1 |
| ITF Turkey F16 | 2018/04/23 07:30 | Nik Razborsek v Linus Frost | 6-3,6-3 |