Stadium: Court 3 Round: 25 Ground: Hardcourt indoor
| ITF - Albuquerque M15 | 2023/09/27 21:30 | Rei Sakamoto v Adam Neff | 4-6,2-6 |
| ITF - Orange Park M15 | 2023/05/04 14:15 | Colin Markes v Rei Sakamoto | 5-7,6-4,6-2 |
| ITF - Orange Park M15 | 2023/05/03 14:50 | Rei Sakamoto v Bruno Kuzuhara | 7-6,4-6,6-3 |
| ITF - Antalya M15 | 2023/04/05 11:40 | Rei Sakamoto v Dominik Kellovsky | 5-7,0-6 |
| ITF - Antalya M15 | 2023/03/30 08:00 | Rei Sakamoto v Sidane Pontjodikromo | 7-5,4-6,1-6 |
| ITF - Antalya M15 | 2023/03/29 11:10 | Bruno Kuzuhara v Rei Sakamoto | 6-4,3-6,4-6 |
| ITF - Naples M15 | 2023/02/24 15:00 | Rei Sakamoto v Gabi Adrian Boitan | 3-6,2-6 |
| ITF - Naples M15 | 2023/02/23 15:00 | Alvaro G Meza v Rei Sakamoto | 6-4,5-7,3-6 |
| ITF - Ithaca M15 | 2023/10/03 19:15 | Mwendwa Mbithi v Ezekiel Clark | 2-6,0-6 |
| ITF - Belgrad M15 | 2023/06/25 07:00 | Mwendwa Mbithi v Luka Petrovic | 3-6,3-6 |
| ITF - Kursumlijska Banja M15 | 2023/06/18 15:00 | Mwendwa Mbithi v Aleksandar Mihailovic | 4-6,4-6 |
| ITF - Kursumlijska Banja M15 | 2023/06/17 17:15 | Joao Eduardo Schiessl v Mwendwa Mbithi | 6-4,6-2 |
| ITF - Kursumlijska Banja M15 | 2023/06/17 13:30 | Mwendwa Mbithi v Leonardo Aboian | 6-1,3-6,11-9 |
| ITF - Kursumlijska Banja M15 | 2023/06/15 12:00 | Mwendwa Mbithi v Andrej Radojicic | 3-6,6-4,6-3 |
| ITF - Kursumlijska Banja M25 | 2023/06/08 08:00 | Mwendwa Mbithi v Luka Pavlovic | 0-6,3-6 |
| ITF - Kursumlijska Banja M25 | 2023/06/07 06:55 | Samuel Vincent Ruggeri v Mwendwa Mbithi | 6-3,4-6,6-7 |