Stadium: Court 21 Round: 62 Ground: Clay
| ITF - Antalya M15 | 2021/04/12 07:00 | Giuseppe La Vela v Stefan Loncar | 4-6,2-6 |
| ITF - Antalya M15 | 2021/04/11 07:00 | Danylo Veremeychuk v Stefan Loncar | 3-6,2-6 |
| ITF - Opatija M15 | 2021/03/22 13:15 | Stefan Loncar v Mattia Frinzi | 3-6,6-7 |
| ITF - Opatija M15 | 2021/03/21 13:00 | Milos Vukovic v Stefan Loncar | 2-6,6-4,7-10 |
| ITF - La Nucia M25 | 2021/03/14 14:00 | Kuzey Cekirge v Stefan Loncar | 6-3,6-2 |
| ITF - Villena M25 | 2021/01/31 10:30 | Stefan Loncar v Zakhar Trapeznikov | 2-6,2-6 |
| ITF - Cairo M15 | 2020/12/06 07:00 | Vignesh Peranamallur v Stefan Loncar | 6-4,7-6 |
| ITF - Cairo M15 | 2020/11/29 08:00 | Mohab Hamed v Stefan Loncar | 6-2,6-4 |
| ITF - Antalya M15 | 2021/04/12 07:00 | Gianmarco Ferrari v Sebastian Gima | 5-7,6-3,10-5 |
| ITF - Antalya M15 | 2021/04/11 07:00 | Gianmarco Ferrari v Guney Ege Cetin | 6-1,6-2 |
| ITF - Opatija M15 | 2021/03/21 11:00 | Francesco Passaro v Gianmarco Ferrari | 6-4,6-0 |
| ITF - Rovinj M15 | 2021/03/15 11:30 | Gianmarco Ferrari v Giacomo Dambrosi | 3-6,2-6 |
| ITF - Rovinj M15 | 2021/03/14 08:30 | Gianmarco Ferrari v Alexandre Aubriot | 6-2,6-1 |
| ITF - Porec M15 | 2021/03/08 11:30 | Matteo Donati v Gianmarco Ferrari | 6-0,6-1 |
| ITF - Porec M15 | 2021/03/07 11:00 | Gabriele Moghini v Gianmarco Ferrari | 6-7,3-6 |
| ITF - Antalya M15 | 2021/02/14 12:00 | Gianmarco Ferrari v Matheus P De Almeida | 7-6,6-2 |