Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| 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 M25 Bolzano | 2023/07/31 13:00 | Juan Bautista Otegui v Ryusuke Horiuchi | 5-7,6-2,6-0 |
| ITF M15 Buschhausen | 2023/09/11 14:30 | Yvo Panak v Luca Matteo Sobbe | 7-5,6-4 |
| ITF M15 Buschhausen | 2023/09/11 08:00 | Luca Matteo Sobbe v Matteo Lavizzari | 6-0,6-1 |
| ITF M25 Oldenzaal | 2023/08/31 11:25 | Luca Matteo Sobbe v Mats Rosenkranz | 2-6,5-7 |
| ITF M25 Oldenzaal | 2023/08/30 15:20 | Luca Matteo Sobbe v Ruben Hartig | 4-6,6-1,7-6 |
| ITF M25 Oldenzaal | 2023/08/29 09:35 | Twan Van Zijl v Luca Matteo Sobbe | 6-2,2-6,15-13 |
| ITF M25 Oldenzaal | 2023/08/28 13:00 | Paulo Knippling v Luca Matteo Sobbe | 0-6,6-7 |
| ITF M15 Eupen | 2023/08/07 07:00 | Thorben Sannen v Luca Matteo Sobbe | 3-6,6-4,10-5 |
| ITF M15 Eindhoven | 2023/07/30 09:30 | Luca Matteo Sobbe v Daniel De Jonge | 4-6,3-6 |