Stadium: Quadra 3 Round: 14 Ground: Clay
| ITF M25 Lujan | 2023/09/24 17:00 | Franco Lima v Nusdeo, Joao Marcos | 7-5,5-7,10-5 |
| ITF - M15 Punta del Este | 2023/09/21 13:00 | Franco Roncadelli v Nusdeo, Joao Marcos | 6-1,6-2 |
| ITF - M15 Punta del Este | 2023/09/20 13:00 | Nusdeo, Joao Marcos v Gonzalo Zeitune | 6-0,6-0 |
| Sao Paulo, Singles M-ITF-BRA-06A | 2023/08/21 16:30 | Nusdeo, Joao Marcos v Jean-Christian Morandais | 4-6,4-6 |
| ITF M15 Belem | 2023/08/17 19:25 | Nusdeo, Joao Marcos v Joao Eduardo Schiessl | 1-6,2-6 |
| ITF M15 Belem | 2023/08/15 17:00 | Nusdeo, Joao Marcos v Gabriel Roveri Sidney | 6-4,2-6,7-5 |
| ITF - M15 Monastir | 2023/07/16 08:00 | Ignasi Forcano v Nusdeo, Joao Marcos | 4-6,7-5,13-11 |
| ITF - M15 Monastir | 2023/07/09 08:30 | Nusdeo, Joao Marcos v Alvin N Tudorica | 2-6,2-6 |
| Bogota, Colombia | 2023/09/24 18:15 | Blaise Bicknell v Marcelo Zormann | 6-4,3-6,6-4 |
| Challenger Antofagasta | 2023/09/17 17:50 | Ignacio Monzon v Marcelo Zormann | 6-2,6-2 |
| Challenger - Santa Cruz | 2023/09/13 00:45 | Matheus P De Almeida v Marcelo Zormann | 6-4,6-4 |
| Challenger - Santa Cruz | 2023/09/11 19:40 | Juan Sebastian Gomez v Marcelo Zormann | 6-3,2-6,6-7 |
| Challenger - Santa Cruz | 2023/09/10 20:20 | Joao Victor C Loureiro v Marcelo Zormann | 3-6,4-6 |
| Challenger Meerbusch | 2023/08/06 15:40 | Ergi Kirkin v Marcelo Zormann | 6-3,6-1 |
| Luedenscheid, Germany | 2023/08/03 11:00 | Louis Wessels v Marcelo Zormann | 6-3,7-6 |
| Luedenscheid, Germany | 2023/08/01 08:00 | Hady Habib v Marcelo Zormann | 4-6,6-2,6-7 |