Stadium: Court 4 Round: 62 Ground: Clay
| ITF M25 Denia | 2023/07/24 15:30 | Gabriel Roveri Sidney v Pol Del Castillo | 6-4,6-3 |
| ITF M25 Denia | 2023/07/23 15:30 | Ghouse Ali Faisal v Pol Del Castillo | 6-7,1-6 |
| ITF M25 Gandia | 2023/07/17 08:00 | Oscar P Sansano v Pol Del Castillo | 4-6,6-3,10-8 |
| ITF M25 Gandia | 2023/07/16 08:00 | Renan Perdigao v Pol Del Castillo | 3-6,1-6 |
| ITF M25 Roda de Bara | 2023/07/10 09:00 | Michael Zhu v Pol Del Castillo | 4-6,6-2,15-13 |
| ITF M25 Roda de Bara | 2023/07/09 11:30 | Pol Del Castillo v Rafael Segado Esteve | 6-4,6-4 |
| UTR Pro Barcelona | 2023/01/08 11:00 | Pol Del Castillo v Jorge Plans | 6-7,6-1,6-1 |
| UTR Pro Barcelona | 2023/01/07 08:00 | Alejo Prado v Pol Del Castillo | 5-7,4-6 |
| ITF M15 Ceuta | 2023/12/10 11:00 | Alvaro Peiro Serrano v Miguel Garcia | 2-6,4-6 |
| ITF M25 Madrid | 2023/12/03 09:00 | Darius Florin Pop v Alvaro Peiro Serrano | 6-0,6-1 |
| ITF M25 Madrid | 2023/11/26 13:30 | Vicente O Moratalla v Alvaro Peiro Serrano | 6-3,7-6 |
| ITF M15 Alcala De Henares | 2023/11/19 13:30 | Dario Montes v Alvaro Peiro Serrano | 6-4,6-2 |
| ITF M15 Valencia | 2023/11/12 09:00 | Darius Florin Pop v Alvaro Peiro Serrano | 6-0,6-4 |
| ITF M15 Castellon | 2023/10/15 08:30 | Pol Amoros Ramos v Alvaro Peiro Serrano | 6-4,6-2 |
| ITF M25 Zaragoza | 2023/10/01 08:00 | Nicolas Rafael Goldberg Alviani v Alvaro Peiro Serrano | 6-4,6-3 |
| ITF M15 Melilla | 2023/09/20 09:00 | Benjamin Winter Lopez v Alvaro Peiro Serrano | 6-1,6-3 |