| Challenger Sao Paulo | 2021/11/29 13:00 | Oscar Jose Gutierrez v Hernan Casanova | 7-5,6-7,0-6 |
| ITF M25 Aparecida De Goiania | 2021/11/14 16:00 | Oscar Jose Gutierrez v Daniel Dutra Da Silva | 6-0,6-4 |
| ITF M25 Aparecida De Goiania | 2021/11/13 11:00 | Oscar Jose Gutierrez v Gustavo Heide | 6-4,6-3 |
| ITF M25 Aparecida De Goiania | 2021/11/12 14:25 | Leonardo Aboian v Oscar Jose Gutierrez | 5-7,2-6 |
| ITF M25 Aparecida De Goiania | 2021/11/11 19:40 | Caio Gruber v Oscar Jose Gutierrez | 1-6,3-6 |
| ITF M25 Aparecida De Goiania | 2021/11/10 15:00 | Enrique Bogo v Oscar Jose Gutierrez | 5-7,2-6 |
| ITF M15 Brasilia | 2021/11/07 12:30 | Gustavo Heide v Oscar Jose Gutierrez | 2-6,6-0,6-4 |
| ITF M15 Brasilia | 2021/11/04 13:00 | Dali Blanch v Oscar Jose Gutierrez | 3-6,4-6 |
| UTR Pro Tennis Series Brasov | 2021/10/30 11:00 | Roman Boychuk v Artem Podorozhnyi | 0-6,6-1,6-2 |
| UTR Pro Tennis Series Brasov | 2021/10/29 07:00 | Bogdan Borza v Artem Podorozhnyi | 6-2,7-5 |
| UTR Pro Tennis Series Brasov | 2021/10/27 11:30 | Samuil Konov v Artem Podorozhnyi | 3-6,6-4,3-6 |
| UTR Pro Tennis Series Brasov | 2021/10/25 08:30 | Ilya Snitari v Artem Podorozhnyi | 6-2,6-1 |
| UTR Pro Tennis Series Mulheim | 2021/09/25 10:00 | Oleksandr Bielinskyi v Artem Podorozhnyi | 6-3,6-3 |
| UTR Pro Tennis Series Mulheim | 2021/09/24 08:00 | Edison Ambarzumjan v Artem Podorozhnyi | 1-6,3-5 |
| UTR Pro Tennis Series Mulheim | 2021/09/23 11:00 | Christos Keisidis v Artem Podorozhnyi | 5-7,2-5 |
| UTR Pro Tennis Series Mulheim | 2021/09/21 08:00 | Colin Sinclair v Artem Podorozhnyi | 5-7,4-6 |