Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Gold Coast | 2023/11/29 01:30 | Keisuke Saitoh v Blake Mott | 2-6,2-6 |
| ITF M25 Brisbane | 2023/11/22 23:50 | Moerani Bouzige v Keisuke Saitoh | 6-4,2-6,7-5 |
| ITF M25 Brisbane | 2023/11/21 05:25 | Keisuke Saitoh v Thomas Fancutt | 4-6,7-5,6-4 |
| ITF M25 Takasaki | 2023/09/20 01:00 | Leo Vithoontien v Keisuke Saitoh | 6-4,6-3 |
| ITF M25 Sapporo | 2023/09/12 03:45 | Keisuke Saitoh v Tomohiro Masabayashi | 5-7,3-6 |
| ITF M25 Sapporo | 2023/09/06 01:00 | Keisuke Saitoh v Tomohiro Masabayashi | 4-6,6-3,1-6 |
| ITF M25 Hong Kong | 2023/08/31 02:00 | Naoki Nakagawa v Keisuke Saitoh | 6-4,6-7,6-1 |
| ITF M25 Hong Kong | 2023/08/30 02:00 | Keisuke Saitoh v Ji Hoon Son | 6-3,7-6 |
| ITF M15 Vigo | 2023/10/12 13:05 | Nicola Kuhn v Ruben Hartig | 6-0,6-2 |
| ITF M15 Vigo | 2023/10/11 17:15 | Nicola Kuhn v Reda Bennani | 7-5,6-4 |
| ITF M25 Zaragoza | 2023/10/04 08:25 | Nicola Kuhn v Mathys Erhard | 2-6,5-7 |
| ITF M15 Madrid | 2023/09/08 09:30 | Nicola Kuhn v Luciano Emanuel Ambrogi | 6-4,4-6,5-7 |
| ITF M15 Madrid | 2023/09/07 10:50 | Petr Iamachkine v Nicola Kuhn | 6-7,7-5,1-6 |
| ITF M15 Madrid | 2023/09/06 10:10 | Nicola Kuhn v Peetu Pohjola | 6-3,6-1 |
| ITF M15 Allershausen | 2023/09/03 11:00 | Adrian Oetzbach v Nicola Kuhn | 6-4,5-7,1-6 |
| ITF M15 Allershausen | 2023/09/02 10:00 | Christoph Negritu v Nicola Kuhn | 3-6,1-6 |