| UTR Pro Tennis Series - Barcelona | 2021/12/07 10:30 | Oscar Jose Gutierrez v Jordan Correia | 0-6,5-7 |
| UTR Pro Tennis Series - Barcelona | 2021/12/06 14:40 | Oscar Jose Gutierrez v Sergio Davila Godoy | 6-3,5-1 |
| Challenger de 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 |
| UTR Pro Tennis Series - Barcelona | 2021/12/07 10:30 | Sergio Davila Godoy v Vlad Cristian Breazu | 4-6,1-5 |
| UTR Pro Tennis Series - Barcelona | 2021/11/28 09:30 | Michiel de Krom v Vlad Cristian Breazu | 6-1,4-6,6-1 |
| UTR Pro Tennis Series - Barcelona | 2021/11/26 18:10 | Tomas C Abasolo v Vlad Cristian Breazu | 5-7,3-6 |
| UTR Pro Tennis Series - Barcelona | 2021/11/26 11:00 | Ilie Babinciuc v Vlad Cristian Breazu | 3-6,3-6 |
| UTR Pro Tennis Series - Barcelona | 2021/11/25 19:15 | Jay Friend v Vlad Cristian Breazu | 6-4,6-3 |
| UTR Pro Tennis Series - Barcelona | 2021/11/22 08:00 | Kuzey Cekirge v Vlad Cristian Breazu | 7-5,4-6,2-6 |
| UTR Pro Tennis Series - Barcelona | 2021/11/14 08:00 | Benjamin Dhoe v Vlad Cristian Breazu | 6-1,5-1 |
| UTR Pro Tennis Series - Barcelona | 2021/11/13 13:00 | Jan Dimitrijevic v Vlad Cristian Breazu | 7-5,0-6,2-6 |