Stadium: Court 1 Round: 44 Ground: Hardcourt outdoor
| 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 |
| ITF M25 Vale Do Lobo | 2021/03/07 12:00 | Alejandro Moro Canas v Illia Stoliar | 6-2,6-2 |
| ITF M25 Faro | 2021/03/02 10:00 | Ronan Joncour v Illia Stoliar | 6-1,6-4 |
| ITF M25 Faro | 2021/03/01 11:00 | Illia Stoliar v Louroi Martinez | 6-7,6-4,10-5 |
| ITF M25 Idanha-A-Nova | 2021/07/18 13:00 | Henrique Petiz v Daniel Little | 3-6,2-6 |
| ITF M25 Idanha-A-Nova | 2021/07/15 13:00 | Daniel Little v Tiago Cacao | 4-6,0-6 |
| ITF M25 Idanha-A-Nova | 2021/07/14 08:00 | Martim L Prata v Daniel Little | 2-6,3-6 |
| ITF M25 Idanha-A-Nova | 2021/07/13 07:55 | Miguel Damas v Daniel Little | 3-6,7-6,7-10 |
| ITF M25 Idanha-A-Nova | 2021/07/12 11:35 | Daniel Little v Bekkhan Atlangeriev | 6-2,4-6,10-2 |
| ITF M15 Heraklion | 2021/06/09 11:50 | Alexander Donski v Daniel Little | 1-6,6-3,6-1 |
| ITF M15 Heraklion | 2021/06/08 06:30 | Rishab Agarwal v Daniel Little | 5-7,1-6 |
| ITF M15 Heraklion | 2021/06/03 06:30 | Daniel Little v Yuki Mochizuki | 7-6,4-6,3-6 |