Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| Challenger Zhangjiagang | 2023/08/27 04:40 | Kaito Uesugi v Jie Cui | 4-6,5-7 |
| Challenger Astana | 2023/07/23 04:00 | Kaito Uesugi v Karan Singh | 6-3,2-6,4-6 |
| Challenger Palmas del Mar | 2023/06/12 15:00 | Kaito Uesugi v Colin Sinclair | 1-6,6-7 |
| Challenger Palmas del Mar | 2023/06/11 18:15 | Kaito Uesugi v Calum Puttergill | 6-3,6-1 |
| ITF M25 Kashiwa | 2023/04/07 03:00 | Jeamoon Lee v Kaito Uesugi | 6-4,6-2 |
| ITF M25 Kashiwa | 2023/04/06 03:40 | Kaito Uesugi v Issei Okamura | 6-1,6-4 |
| ITF M25 Kashiwa | 2023/04/05 08:15 | Kaito Uesugi v Sora Fukuda | 2-6,6-2,6-2 |
| ITF M25 Kashiwa | 2023/04/03 03:30 | Jeremy Jin v Kaito Uesugi | 4-6,1-6 |
| ITF M25 Klosters | 2023/07/02 11:45 | Nico Hornitschek v Mihaita Daniel Damian | 6-0,6-0 |
| ITF M15 Kamen | 2023/06/26 08:00 | Nico Hornitschek v Stepan Pecak | 6-7,1-6 |
| ITF M15 Duffel | 2023/06/12 10:00 | Nico Hornitschek v Noah Schlagenhauf | 5-7,6-7 |
| ITF M15 Duffel | 2023/06/11 14:00 | Nico Hornitschek v Joshua Nuyts | 6-2,6-0 |
| ITF M15 Vaasa | 2023/06/08 09:15 | Karl Friberg v Nico Hornitschek | 6-3,6-3 |
| ITF M15 Vaasa | 2023/06/07 07:00 | Benedikt Henning v Nico Hornitschek | 4-6,4-6 |
| ITF M25 Bodrum | 2023/05/23 08:10 | Nico Hornitschek v Sergey Fomin | 7-5,0-6,5-7 |
| ITF M25 Bodrum | 2023/05/22 07:50 | Nico Hornitschek v Fatih Sari | 6-2,6-3 |