Stadium: Court 10 Round: 62 Ground: Hardcourt outdoor
| ITF M25 - Sintra | 2021/09/12 12:00 | Martim Marujo v Mirko Lagasio | 6-7,3-6 |
| ITF M25 - Sintra | 2021/09/06 12:00 | Alastair Gray v Mirko Lagasio | 6-0,6-2 |
| ITF M25 - Sintra | 2021/09/05 08:30 | Mirko Lagasio v Martim Marujo | 6-4,4-6,11-9 |
| ITF M15 - Cairo | 2021/08/01 12:30 | Omar Morsy v Mirko Lagasio | 7-6,6-1 |
| ITF M15 - Antalya | 2021/04/25 07:00 | Mirko Lagasio v Koray Kirci | 2-6,6-7 |
| ITF M15 - Sharm El Sheikh | 2021/03/14 13:00 | Mirko Lagasio v Ben Jones | 4-6,3-6 |
| ITF M15 - Sharm El Sheikh | 2021/03/08 11:30 | Niklas Guttau v Mirko Lagasio | 6-3,4-6,10-4 |
| ITF M15 - Sharm El Sheikh | 2021/03/07 16:00 | Mirko Lagasio v Iacopo Sada | 6-3,4-6,10-5 |
| ITF M25 - Sintra | 2021/09/05 12:00 | Paulo A S Dos Santos v Illia Stoliar | 6-2,6-2 |
| ITF M15 - Castelo Branco | 2021/07/25 16:00 | Illia Stoliar v Andre Rodeia | 7-6,5-7,6-10 |
| ITF M25 - Idanha-A-Nova | 2021/07/19 12:50 | Illia Stoliar v Daniel Little | 2-6,4-6 |
| ITF M25 - Idanha-A-Nova | 2021/07/18 13:00 | Andre Stewart v Illia Stoliar | 5-7,3-6 |
| ITF M25 - Idanha-A-Nova | 2021/07/13 10:25 | Daniel Rodrigues v Illia Stoliar | 2-6,6-4,11-9 |
| ITF M25 - Idanha-A-Nova | 2021/07/12 15:15 | Bruno Ouvidor v Illia Stoliar | 2-6,1-6 |
| ITF M25 - Idanha-A-Nova | 2021/07/12 08:00 | Illia Stoliar v Kuzey Cekirge | 6-2,6-3 |
| ITF M15 - Marbella | 2021/05/23 07:00 | Michael Zhu v Illia Stoliar | 6-1,6-4 |