Stadium: Court 6 Round: 26 Ground: Clay
| ITF M25 Punta del Este | 2024/02/07 13:00 | Alex M Pujolras v Paulo A S Dos Santos | 4-6,2-6 |
| ITF M25 Punta del Este | 2024/02/06 12:00 | Paulo A S Dos Santos v Joel Angel Lucero | 6-4,6-1 |
| Challenger Piracicaba | 2024/01/28 17:00 | Kilian Feldbausch v Paulo A S Dos Santos | 3-6,6-3,6-4 |
| ITF M15 Concepcion | 2023/12/13 13:00 | Paulo A S Dos Santos v Valerio Aboian | 4-6,4-6 |
| ITF M15 Concepcion | 2023/12/12 17:35 | Nicolas Villalon v Paulo A S Dos Santos | 2-6,6-7 |
| Challenger Temuco | 2023/11/26 15:55 | Keegan Smith v Paulo A S Dos Santos | 6-4,6-7,6-4 |
| Challenger Brasilia | 2023/11/19 17:25 | Gonzalo Bueno v Paulo A S Dos Santos | 7-6,6-4 |
| ITF M15 Santo Domingo | 2023/11/16 15:05 | Peter Bertran v Paulo A S Dos Santos | 6-3,7-5 |
| ITF M25 Punta del Este | 2024/02/06 19:00 | Gonzalo Villanueva v Joao Lucas Reis da Silva | 0-6,6-4,6-2 |
| Challenger Piracicaba | 2024/01/30 17:55 | Hernan Casanova v Gonzalo Villanueva | 6-2,6-4 |
| Challenger Piracicaba | 2024/01/30 13:00 | Gonzalo Villanueva v Mariano Kestelboim | 6-2,7-5 |
| Challenger Piracicaba | 2024/01/29 13:00 | Gonzalo Villanueva v Fernando Yamacita | 6-2,6-0 |
| Challenger Buenos Aires | 2024/01/17 13:00 | Gonzalo Villanueva v Damien Wenger | 6-7,4-6 |
| Challenger Buenos Aires Qual | 2024/01/15 13:00 | Gonzalo Villanueva v Gerard Campana Lee | 6-4,7-6 |
| Challenger Buenos Aires Qual | 2024/01/14 15:55 | Gilbert S K Junior v Gonzalo Villanueva | 5-7,4-6 |
| Challenger Buenos Aires | 2024/01/09 20:05 | Oleksii Krutykh v Gonzalo Villanueva | 4-6,7-5,7-6 |