Stadium: Court 4 Round: 44 Ground: Clay
| ITF - M25 Bakio | 2021/06/28 16:00 | Inaki Cabrera Bello v Jordi Mas De Ugarte | 3-6,2-6 |
| ITF - M25 Montauban | 2021/06/21 11:00 | Inaki Cabrera Bello v Bradley Paliska | 4-6,1-6 |
| ITF - M15 Novomoskovsk | 2021/05/30 06:15 | Alexander Zgirovsky v Inaki Cabrera Bello | 6-0,6-4 |
| ITF - M15 Novomoskovsk | 2021/05/24 12:00 | Bruno P Navarro v Inaki Cabrera Bello | 6-2,6-2 |
| ITF - M25 Vic | 2021/05/17 09:00 | Pol Toledo Bague v Inaki Cabrera Bello | 3-6,6-1,10-4 |
| ITF - M25 Vic | 2021/05/16 11:00 | Inaki Cabrera Bello v Matvey Minin | 6-4,4-6,11-9 |
| ITF - M15 Valldoreix | 2021/05/10 11:00 | Inaki Cabrera Bello v Louis Dussin | 1-6,7-5,5-10 |
| ITF - M15 Valldoreix | 2021/05/09 14:00 | Inaki Cabrera Bello v Jordi Garcia Mestre | 6-4,5-7,10-5 |
| ITF - M25 Belehrad | 2021/06/28 07:00 | Edoardo Lavagno v Dusan Rajic | 6-1,6-2 |
| ITF - M25 Belehrad | 2021/06/27 07:00 | Dusan Rajic v Ivan Mikhaylyuk | 2-6,6-0,12-10 |
| ITF - M15 Brčko | 2021/05/21 13:05 | Dusan Rajic v Eric Vanshelboim | 3-6,1-6 |
| ITF - M15 Brčko | 2021/05/21 07:35 | Kristjan Tamm v Dusan Rajic | 4-6,5-7 |
| ITF - M15 Brčko | 2021/05/18 12:00 | Lazar Milicevic v Dusan Rajic | 7-6,6-4 |
| ITF - M15 Brčko | 2021/05/18 07:00 | Valentin Lapalu v Dusan Rajic | 1-6,6-3,6-10 |
| ITF - M15 Brčko | 2021/05/16 08:15 | Preston Connor v Dusan Rajic | 3-6,0-6 |
| ITF - M15 Prijedor | 2021/05/10 09:15 | Dusan Rajic v Lazar Milicevic | 2-6,2-6 |