Estadio: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/03/17 09:35 | Francesco Vilardo v Oscar Jose Gutierrez | 7-6,6-2 |
| ITF M15 Sharm El Sheikh | 2021/03/11 07:30 | Lukas Krainer v Oscar Jose Gutierrez | 7-5,6-4 |
| ITF M15 Sharm El Sheikh | 2021/03/10 09:45 | Karl Friberg v Oscar Jose Gutierrez | 5-7,6-2,4-6 |
| Challenger de Concepción | 2021/02/15 15:40 | Carlos Gomez-Herrera v Oscar Jose Gutierrez | 6-4,6-4 |
| Challenger de Concepción | 2021/02/14 14:00 | Alejandro Bancalari v Oscar Jose Gutierrez | 1-6,0-6 |
| Challenger de Campinas | 2020/11/30 15:00 | Oscar Jose Gutierrez v Sebastian Baez | 5-7,6-1,1-6 |
| Challenger de Sao Paulo | 2020/11/22 14:00 | Oscar Jose Gutierrez v Matheus P De Almeida | 1-6,3-6 |
| ITF M15 Setúbal | 2020/10/06 10:45 | Oscar Jose Gutierrez v Patrik Niklas-Salminen | 2-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/03/23 11:35 | Petr Hajek v Karlo Cubelic | 7-6,6-2 |
| ITF M15 Sharm El Sheikh | 2021/03/22 13:00 | Toby D. Boyer v Karlo Cubelic | 1-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/02/17 07:30 | Karlo Cubelic v Martins Podzus | 6-4,1-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/02/16 10:55 | Luca Potenza v Karlo Cubelic | 6-7,3-6 |
| ITF M15 Sharm El Sheikh | 2021/02/15 13:00 | Karlo Cubelic v Kristof Minarik | 6-4,6-4 |
| ITF M15 Sharm El Sheikh | 2021/02/14 16:00 | Karlo Cubelic v Nitin Kumar Sinha | 6-4,6-3 |
| ITF M15 Sharm El Sheikh | 2021/02/08 07:30 | Karlo Cubelic v Lukas Krainer | 4-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/02/07 07:00 | Luca Moro Almeida v Karlo Cubelic | 0-6,0-6 |