Estadio: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/03/26 07:30 | Oscar Jose Gutierrez v Marcello Serafini | 4-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/03/25 07:30 | Oscar Jose Gutierrez v Samuel Vincent Ruggeri | 6-0,3-6,6-2 |
| ITF M15 Sharm El Sheikh | 2021/03/24 11:55 | Oscar Jose Gutierrez v Karlo Cubelic | 4-6,6-3,7-6 |
| 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 |
| ITF M15 Sharm El Sheikh | 2021/03/24 09:15 | David Poljak v Ryan Nijboer | 6-1,6-4 |
| ITF M15 Sharm El Sheikh | 2021/03/14 09:30 | Ryan Nijboer v Daniel Little | 4-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/03/10 12:30 | Yu Hsiou Hsu v Ryan Nijboer | 6-2,6-1 |
| ITF M15 Sharm El Sheikh | 2021/03/09 07:30 | Ryan Nijboer v Saba Purtseladze | 7-6,7-6 |
| ITF M15 Sharm El Sheikh | 2021/03/08 07:30 | Ryan Nijboer v Ivan Mikhaylyuk | 6-3,3-6,10-8 |
| ITF M15 Sharm El Sheikh | 2021/03/07 09:30 | Ryan Nijboer v Yaron Guberman | 6-1,6-3 |
| ATP Róterdam | 2021/02/27 13:20 | Ryan Nijboer v Antoine Hoang | 4-6,0-6 |
| ITF M15 Bressuire | 2021/01/17 15:40 | Youcef Rihane v Ryan Nijboer | 7-6,6-3 |