Stadium: Court 4 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Monastir | 2023/11/05 10:30 | Ryusuke Horiuchi v Luca Matteo Sobbe | 1-6,1-6 |
| ITF M15 Monastir | 2023/10/29 09:30 | Lorenzo Lorusso v Ryusuke Horiuchi | 5-7,6-2,10-6 |
| ITF M15 Monastir | 2023/10/15 09:30 | Ryusuke Horiuchi v Loan Lestir | 3-6,2-6 |
| ITF M25 Takasaki | 2023/09/18 00:55 | Leo Vithoontien v Ryusuke Horiuchi | 6-2,7-6 |
| ITF M25 Takasaki | 2023/09/17 01:00 | Maximus Kawabata v Ryusuke Horiuchi | 1-6,0-6 |
| ITF M25 Sapporo | 2023/09/11 02:30 | Ryusuke Horiuchi v Yusuke Kusuhara | 3-6,6-3,6-10 |
| ITF M25 Sapporo | 2023/09/04 03:35 | Ryusuke Horiuchi v Seiya Nakanishi | 6-4,2-6,10-12 |
| ITF M25 Sapporo | 2023/09/03 03:00 | Ryusuke Horiuchi v Kenta Nakamura | 6-3,6-1 |
| ITF M15 Monastir | 2023/11/08 12:10 | Leon Formella v Egor Agafonov | 1-6,6-4,2-6 |
| ITF M15 Monastir | 2023/10/29 09:30 | Noel Larwig v Leon Formella | 6-3,6-3 |
| ITF M15 Monastir | 2023/10/23 08:00 | Jean-Christian Morandais v Leon Formella | 6-4,6-4 |
| ITF M15 Monastir | 2023/10/22 08:00 | Leon Formella v Adam Kaczmarek | 6-2,6-2 |
| ITF M25 Pardubice | 2023/09/17 10:30 | Leon Formella v Jan Facek | 4-6,6-7 |
| ITF M15 Buschhausen | 2023/09/10 11:00 | Jurriaan Bol v Leon Formella | 6-4,3-6,12-10 |
| ITF M15 Haren | 2023/09/03 08:00 | Sam Bakker v Leon Formella | 6-4,6-4 |
| ITF M25 Oldenzaal | 2023/08/29 11:45 | Adam Panaras v Leon Formella | 2-6,6-4,10-7 |