Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Belem | 2023/08/16 17:00 | Julian Cundom v Paulo A S Dos Santos | 6-7,5-7 |
| ITF M25 Pitesti | 2023/08/01 09:30 | Paulo A S Dos Santos v Vlad Andrei Dancu | 4-6,6-7 |
| ITF M25 Bacau | 2023/07/27 08:00 | Paulo A S Dos Santos v Luca Giacomini | 0-6,2-6 |
| ITF M25 Bacau | 2023/07/25 11:25 | Corentin Denolly v Paulo A S Dos Santos | 6-7,6-0,5-7 |
| ITF M25 Esch/Alzette | 2023/07/18 08:30 | Amaury Raynel v Paulo A S Dos Santos | 6-7,7-6,6-1 |
| ITF M25 Esch/Alzette | 2023/07/10 07:00 | Paulo A S Dos Santos v Samuel Brosset | 1-6,2-6 |
| ITF M15 Casablanca | 2023/06/29 16:10 | Paulo A S Dos Santos v Juan Estevez | 5-7,3-6 |
| ITF M15 Casablanca | 2023/06/28 09:00 | Taym Alazmeh v Paulo A S Dos Santos | 7-6,0-6,1-6 |
| ITF M15 Belem | 2023/08/15 20:45 | Ignacio A B Otarola v Preston Brown | 3-6,6-3,6-2 |
| ITF M15 Arequipa | 2023/08/11 23:30 | Alvaro Guillen Meza v Ignacio A B Otarola | 6-0,6-2 |
| ITF M15 Arequipa | 2023/08/10 15:55 | Arklon H D Pino v Ignacio A B Otarola | 6-2,4-6,2-6 |
| ITF M15 Arequipa | 2023/08/09 14:30 | Ignacio A B Otarola v Gianluca Ballotta | 6-4,6-1 |
| ITF M15 Arequipa | 2023/08/08 14:30 | Ignacio A B Otarola v Luis Jose Nakamine | 7-6,6-1 |
| ITF M25 Rosario | 2023/06/30 14:55 | Alejo Lorenzo Lingua Lavallen v Ignacio A B Otarola | 7-6,6-1 |
| ITF M25 Rosario | 2023/06/29 13:00 | Oscar Gabriel Ortiz v Ignacio A B Otarola | 6-7,5-7 |
| ITF M25 Rosario | 2023/06/27 14:10 | Ignacio A B Otarola v Fermin Tenti | 6-3,7-5 |