Stadium: Court 14 Round: 27 Ground: Clay
| ITF M25 Aparecida De Goiania | 2021/11/11 16:00 | Ribeiro Marcondes, Igor v Valerio Aboian | 6-1,6-3 |
| ITF M25 Aparecida De Goiania | 2021/11/09 16:10 | Ribeiro Marcondes, Igor v Gabriel Roveri Sidney | 6-0,6-2 |
| ITF M15 Brasilia | 2021/11/02 21:55 | Ribeiro Marcondes, Igor v Eduardo Ribeiro | 5-7,4-6 |
| ITF M25 Rio do Sul | 2021/10/21 16:30 | Ribeiro Marcondes, Igor v Gustavo Heide | 6-7,1-6 |
| ITF M25 Rio do Sul | 2021/10/19 14:30 | Ribeiro Marcondes, Igor v Joao Pedro G. Dos Santos | 6-4,6-0 |
| ITF M25 Johannesburg | 2021/09/23 07:00 | Ribeiro Marcondes, Igor v Seelig, Kyle | 6-1,6-7,1-6 |
| ITF M25 Johannesburg | 2021/09/21 10:30 | Ribeiro Marcondes, Igor v Sibanda, Mehluli Don Ayanda | 6-1,7-5 |
| ITF M25 Johannesburg | 2021/09/14 08:00 | Ribeiro Marcondes, Igor v Kelsey Stevenson | 5-7,6-7 |
| ITF M25 Aparecida De Goiania | 2021/11/11 16:00 | Nicolas Zanellato v Zukas, Matias | 1-6,6-3,4-6 |
| ITF M25 Aparecida De Goiania | 2021/11/09 15:35 | Fernando Yamacita v Zukas, Matias | 2-6,1-6 |
| Challenger Guayaquil | 2021/10/31 18:30 | Murkel Dellien v Zukas, Matias | 6-3,6-2 |
| ITF M25 Guayaquil | 2021/10/29 15:00 | Juan Bautista Torres v Zukas, Matias | 6-7,6-4,7-6 |
| ITF M25 Guayaquil | 2021/10/28 17:40 | Miguel L Sicco v Zukas, Matias | 0-6,0-6 |
| ITF M25 Guayaquil | 2021/10/26 17:05 | Santiago Padilla Cote v Zukas, Matias | 1-6,2-6 |
| Bogota, Colombia | 2021/10/18 20:00 | Zukas, Matias v Quiroz, Roberto | 4-6,6-7 |
| Ambato, Ecuador | 2021/09/24 17:45 | Juan Pablo Varillas v Zukas, Matias | 6-2,6-4 |