Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| Challenger Yokkaichi | 2023/11/26 04:20 | Calum Puttergill v Kazuki Nishiwaki | 7-5,6-2 |
| Challenger Matsuyama | 2023/11/05 04:55 | Kazuki Nishiwaki v Rio Noguchi | 2-6,5-7 |
| ITF M25 Dharwad | 2023/10/20 04:30 | Kazuki Nishiwaki v Digvijay Pratap Singh | 4-6,7-6,2-6 |
| ITF M25 Dharwad | 2023/10/19 04:35 | Kazuki Nishiwaki v Madhwin Kamath | 6-4,6-4 |
| ITF M25 Dharwad | 2023/10/18 09:25 | Kazuki Nishiwaki v Ryotaro Matsumura | 6-2,7-5 |
| ITF M25 Takasaki | 2023/09/22 01:00 | Kazuki Nishiwaki v Collin Altamirano | 3-6,1-6 |
| ITF M25 Takasaki | 2023/09/21 01:50 | Kazuki Nishiwaki v Leo Vithoontien | 5-7,6-4,6-4 |
| ITF M25 Takasaki | 2023/09/20 02:40 | Kazuki Nishiwaki v Taisei Miyamoto | 6-3,6-0 |
| ITF M15 Ceuta | 2023/12/10 11:00 | Manel L Juncadella v Keanu Elias Immler | 1-6,4-6 |
| ITF M25 Madrid | 2023/12/04 09:30 | Adam Heinonen v Manel L Juncadella | 6-2,6-0 |
| ITF M25 Madrid | 2023/12/03 14:00 | Ander Tarrio Ponte v Manel L Juncadella | 1-6,2-6 |
| ITF M15 Alcala De Henares | 2023/11/21 08:00 | Daniel L Salmeron v Manel L Juncadella | 6-3,6-4 |
| ITF M15 Alcala De Henares | 2023/11/20 11:30 | Manel L Juncadella v Dario Montes | 6-3,6-2 |
| ITF M15 Alcala De Henares | 2023/11/19 10:30 | Diego Martin Mendez v Manel L Juncadella | 2-6,3-6 |
| ITF M25 Benicarlo | 2023/11/05 11:30 | Alejandro Manzanera Pertusa v Manel L Juncadella | 6-1,6-3 |
| ITF M15 Castellon | 2023/10/15 10:00 | Manel L Juncadella v Kane Bonsach Ganley | 3-6,2-6 |