Stadium: Court 15 Round: 27 Ground: Clay
| ITF M25 Aparecida De Goiania | 2021/11/11 18:55 | Alejandro Gonzalez v Leonardo Aboian | 3-6,4-6 |
| ITF M25 Aparecida De Goiania | 2021/11/10 15:00 | Joao Victor C Loureiro v Leonardo Aboian | 2-6,3-6 |
| ITF M15 Brasilia | 2021/11/03 12:00 | Luis Britto v Leonardo Aboian | 3-6,7-6,6-4 |
| Challenger Buenos Aires | 2021/10/17 18:05 | Martin Cuevas v Leonardo Aboian | 6-1,6-1 |
| ITF M15 Cairo | 2021/09/30 10:10 | Leonardo Aboian v Hady Habib | 5-7,4-6 |
| ITF M15 Cairo | 2021/09/29 07:30 | Kokoro Isomura v Leonardo Aboian | 2-6,3-6 |
| ITF M15 Cairo | 2021/09/28 08:00 | Leonardo Aboian v Maik Steiner | 7-6,7-5 |
| ITF M15 Cairo | 2021/09/27 08:00 | Leonardo Aboian v Ian O'Jon | 6-0,6-3 |
| 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 |
| ITF M15 Brasilia | 2021/11/03 15:50 | Joao Eduardo Schiessl v Oscar Jose Gutierrez | 3-6,5-7 |
| ITF M25 Rio do Sul | 2021/10/21 16:10 | Nicolas Zanellato v Oscar Jose Gutierrez | 6-7,6-1,6-1 |
| ITF M25 Rio do Sul | 2021/10/20 16:40 | Amnon Felipe v Oscar Jose Gutierrez | 0-6,4-6 |
| ITF M25 Lima | 2021/10/12 16:20 | Franco Roncadelli v Oscar Jose Gutierrez | 6-0,7-6 |