Stadium: Court 21 Round: 25 Ground: Clay
| ITF - Antalya M15 | 2021/06/10 09:10 | Joao Lucas Reis da Silva v Francisco Comesana | 4-6,6-7 |
| ITF - Antalya M15 | 2021/06/08 09:15 | Yu Hsiou Hsu v Joao Lucas Reis da Silva | 5-7,6-7 |
| ITF - Sarajewo M15 | 2021/06/05 08:30 | Joao Lucas Reis da Silva v Hernan Casanova | 7-6,3-6,1-6 |
| ITF - Sarajewo M15 | 2021/06/04 09:00 | Joao Lucas Reis da Silva v Luka Petrovic | 6-3,6-3 |
| ITF - Sarajewo M15 | 2021/06/03 12:05 | Joao Lucas Reis da Silva v Michal Novansky | 6-3,6-0 |
| ITF - Sarajewo M15 | 2021/06/02 12:20 | Joao Lucas Reis da Silva v Nemanja Malesevic | 6-3,6-4 |
| ITF - Kiseljak M25 | 2021/05/26 10:25 | Jelle Sels v Joao Lucas Reis da Silva | 6-3,6-2 |
| ITF - Brcko M15 | 2021/05/22 07:30 | Bastian Malla v Joao Lucas Reis da Silva | 6-1,7-6 |
| ITF - Antalya M15 | 2021/06/10 07:00 | Fermin Tenti v Mircea-Alexandru Jecan | 3-6,6-4,2-6 |
| ITF - Antalya M15 | 2021/06/08 11:55 | Fermin Tenti v Toby Alex Kodat | 6-2,6-3 |
| ITF - Novomoskovsk M15 | 2021/06/04 09:30 | Danylo Kalenichenko v Fermin Tenti | 6-1,6-4 |
| ITF - Novomoskovsk M15 | 2021/06/03 14:10 | Ignacio Monzon v Fermin Tenti | 7-6,6-7,7-10 |
| ITF - Novomoskovsk M15 | 2021/05/28 09:50 | Fermin Tenti v Oleksii Krutykh | 3-6,2-6 |
| ITF - Novomoskovsk M15 | 2021/05/26 06:15 | Danylo Kalenichenko v Fermin Tenti | 4-6,2-6 |
| ITF - Antalya M15 | 2021/05/19 07:25 | Lucas Gerch v Fermin Tenti | 6-3,6-4 |
| ITF - Antalya M15 | 2021/05/11 10:10 | Leo Borg v Fermin Tenti | 7-6,6-0 |