Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF M25 Tainan | 2023/08/16 04:40 | Kazuki Nishiwaki v Singh, Digvijaypratap | 6-7,6-4,6-3 |
| ITF M25 Dharwad | 2023/10/19 04:35 | Kazuki Nishiwaki v Madhwin Kamath | 6-4,6-4 |
| ITF M25 Dharwad | 2023/10/18 09:25 | Kazuki Nishiwaki v Ryotaro Matsumura | 6-2,7-5 |
| ITF M25 Takasaki | 2023/09/22 01:00 | Kazuki Nishiwaki v Collin Altamirano | 3-6,1-6 |
| ITF M25 Takasaki | 2023/09/21 01:50 | Kazuki Nishiwaki v Leo Vithoontien | 5-7,6-4,6-4 |
| ITF M25 Takasaki | 2023/09/20 02:40 | Kazuki Nishiwaki v Taisei Miyamoto | 6-3,6-0 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/17 01:55 | Naoki Nakagawa v Kazuki Nishiwaki | 4-6,6-1,6-4 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/16 05:30 | Sekiguchi, Shuichi v Kazuki Nishiwaki | 6-0,5-7,4-6 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/16 01:00 | Kazuki Nishiwaki v Yuki Mochizuki | 6-1,6-3 |
| ITF M25 Dharwad | 2023/10/19 03:30 | Rishab Agarwal v Singh, Digvijaypratap | 4-6,2-6 |
| ITF M25 Dharwad | 2023/10/17 05:45 | Siddhant Banthia v Singh, Digvijaypratap | 2-6,6-7 |
| ITF M15 Ahmedabad | 2023/10/12 04:00 | Singh, Digvijaypratap v Karan Singh | 7-5,5-7,3-6 |
| ITF M15 Ahmedabad | 2023/10/11 04:30 | Singh, Digvijaypratap v Shivank Bhatnagar | 6-7,6-2,6-3 |
| ITF M15 Ahmedabad | 2023/10/10 03:30 | Singh, Digvijaypratap v Ryotaro Matsumura | 6-2,6-4 |
| Alicante, Spain | 2023/10/01 10:10 | Daniel Cukierman v Singh, Digvijaypratap | 6-0,7-6 |
| Coupe Davis | 2023/09/17 11:30 | Singh, Digvijaypratap v Ahouda, Walid | 6-1,5-7,10-6 |
| ITF M25 Tainan | 2023/08/25 02:00 | Rishab Agarwal v Singh, Digvijaypratap | 2-6,6-3,6-4 |