Estadio: Court 3 Round: 25 Ground: Clay
| Challenger Florianópolis | 2021/12/09 14:25 | Juan Ignacio Londero v Johan Nikles | 6-1,6-4 |
| Challenger Florianópolis | 2021/12/06 19:00 | Guilherme Clezar v Johan Nikles | 3-6,7-6,2-6 |
| Challenger de Sao Paulo | 2021/12/01 14:15 | Johan Nikles v Felipe Meligeni Rodrigues Alves | 7-6,2-6,1-6 |
| Challenger de Sao Paulo | 2021/11/30 12:30 | Johan Nikles v Kaichi Uchida | 6-7,7-6,6-0 |
| Challenger de Brasilia | 2021/11/22 16:00 | Johan Nikles v Juan Ignacio Londero | 4-6,4-6 |
| Challenger de Campinas | 2021/11/16 13:00 | Thiago Monteiro v Johan Nikles | 6-2,6-1 |
| Challenger de Campinas | 2021/11/14 14:00 | Mateus Alves v Johan Nikles | 4-6,2-6 |
| Challenger de Lima | 2021/10/02 18:50 | Johan Nikles v Hugo Dellien | 7-6,4-6,2-6 |
| Challenger de Río de Janeiro | 2021/12/13 14:15 | Roy Smith v Luca Castelnuovo | 6-7,6-3,2-6 |
| Challenger de Río de Janeiro | 2021/12/12 14:00 | Fernando Romboli v Luca Castelnuovo | 4-6,6-7 |
| Challenger Florianópolis | 2021/12/05 12:30 | Luca Castelnuovo v Federico Zeballos | 3-6,1-6 |
| Challenger de Brasilia | 2021/11/22 13:00 | Luca Castelnuovo v Tomas Lipovsek Puches | 7-5,6-7,5-7 |
| Challenger de Brasilia | 2021/11/21 14:35 | Gonzalo Villanueva v Luca Castelnuovo | 6-7,6-3,3-6 |
| ITF M15 Cundinamarca | 2021/11/16 19:25 | Mateo Gomez v Luca Castelnuovo | 1-6,6-2,7-5 |
| Challenger de Lima | 2021/10/24 16:00 | Luca Castelnuovo v Alexandar Lazarov | 4-6,5-7 |
| Challenger de Bogotá | 2021/10/19 16:40 | Facundo Mena v Luca Castelnuovo | 6-4,6-2 |