Estadio: Cancha 2 Round: 25 Ground: Clay
| Challenger de Santo Domingo | 2023/08/08 17:45 | Matheus P De Almeida v Genaro Alberto Olivieri | 2-6,6-1,2-6 |
| Challenger de Liberec | 2023/08/02 10:15 | Matheus P De Almeida v Riccardo Bonadio | 2-6,1-6 |
| Challenger de Zug | 2023/07/25 09:30 | Matheus P De Almeida v Adrian Andreev | 2-6,4-6 |
| Challenger Salzburg | 2023/07/11 09:00 | Matheus P De Almeida v Nerman Fatic | 0-6,5-7 |
| Challenger de Blois | 2023/06/20 12:10 | Matheus P De Almeida v Ugo Blanchet | 6-7,7-6,4-6 |
| Challenger de Lyon | 2023/06/13 11:40 | Matheus P De Almeida v Felipe Meligeni Rodrigues Alves | 6-3,3-6,4-6 |
| Challenger de Prostejov | 2023/06/06 13:20 | Matheus P De Almeida v Lukas Klein | 4-6,6-3,4-6 |
| Challenger de Prostejov | 2023/06/05 08:00 | Matheus P De Almeida v Vitaliy Sachko | 3-6,6-0,7-5 |
| Challenger de Santa Cruz | 2023/09/11 19:40 | Juan Sebastian Gomez v Marcelo Zormann | 6-3,2-6,6-7 |
| Challenger de Santa Cruz | 2023/09/10 20:20 | Joao Victor C Loureiro v Marcelo Zormann | 3-6,4-6 |
| Challenger de Meerbusch | 2023/08/06 15:40 | Ergi Kirkin v Marcelo Zormann | 6-3,6-1 |
| Challenger de Luedenscheid | 2023/08/03 11:00 | Louis Wessels v Marcelo Zormann | 6-3,7-6 |
| Challenger de Luedenscheid | 2023/08/01 08:00 | Hady Habib v Marcelo Zormann | 4-6,6-2,6-7 |
| Challenger de Luedenscheid | 2023/07/30 15:05 | Marcelo Zormann v Filip Bergevi | 6-3,6-7,6-4 |
| Challenger San Benedetto | 2023/07/09 14:15 | Dmitry Popko v Marcelo Zormann | 7-5,6-7,6-2 |
| Challenger Florianópolis | 2023/04/16 18:50 | Thiago Cigarran v Marcelo Zormann | 4-6,7-6,3-6 |