| ITF Germany F6 MD | 2018/07/05 13:30 | Cornea/Negritu v Calzi/Knaff | 6-2,6-3 |
| ITF Germany F6 MD | 2018/07/04 16:15 | Kopeinigg/Maier v Calzi/Knaff | 5-7,3-6 |
| ITF Belgium F2 MD | 2018/06/27 16:00 | Calzi/Knaff v Dellavedova/Paul | 4-6,1-6 |
| ITF Belgium F2 MD | 2018/06/26 11:55 | Desein/Panfil v Calzi/Knaff | 3-6,6-7 |
| ITF Belgium F8 MD | 2017/08/08 09:00 | de Krom/Vanneste v Calzi/Knaff | 6-2,6-1 |
| ITF Germany F7 MD | 2017/07/14 13:00 | Puodziunas/Reese v Calzi/Knaff | 3-6,6-3,10-4 |
| ITF Germany F7 MD | 2017/07/13 11:25 | Calzi/Knaff v Casanova/Uryson | 6-4,4-6,10-7 |
| ITF Belgium F2 MD | 2017/06/29 16:10 | Calzi/Knaff v Dutra Da Silva/Pereira | 6-3,1-6,4-10 |