Stadium: Court 4 Round: 27 Ground: Hardcourt outdoor
| ITF Singapore F2 | 2018/05/25 03:00 | Kazuki Nishiwaki v Collin Altamirano | 7-5,2-6,3-6 |
| ITF M25 Jakarta | 2023/04/25 02:00 | Kazuki Nishiwaki v Tsung-Hao Huang | 3-6,5-7 |
| ITF M25 Jakarta | 2023/04/17 06:25 | Kazuki Nishiwaki v Yuta Kawahashi | 4-6,4-6 |
| ITF M25 Jakarta | 2023/04/13 04:25 | Yuta Shimizu v Kazuki Nishiwaki | 6-2,6-4 |
| ITF M25 Jakarta | 2023/04/12 01:55 | Justin Barki v Kazuki Nishiwaki | 6-7,2-6 |
| ITF M25 Jakarta | 2023/04/11 04:00 | Kazuki Nishiwaki v Yan Bai | 2-6,7-6,10-6 |
| ITF M25 Jakarta | 2023/04/10 07:35 | Kazuki Nishiwaki v Ha Minh Duc Vu | 6-1,6-4 |
| ITF M15 Singapore | 2023/04/05 09:00 | Dayne Kelly v Kazuki Nishiwaki | 6-3,6-4 |
| ITF M25 Tsukuba | 2023/03/30 03:35 | Yusuke Takahashi v Kazuki Nishiwaki | 6-2,6-0 |
| ITF M25 Carnac | 2023/05/30 16:20 | Titouan Droguet v Collin Altamirano | 6-1,6-2 |
| ITF M25 Carnac | 2023/05/29 11:50 | Loann Massard v Collin Altamirano | 6-2,4-6,5-10 |
| ITF M25 Carnac | 2023/05/28 14:20 | Leo Cohen Bacrie v Collin Altamirano | 6-7,1-6 |
| ITF M15 Pazardzhik | 2023/05/25 09:50 | Collin Altamirano v Matyas Fuele | 5-7,4-6 |
| ITF M15 Pazardzhik | 2023/05/24 11:20 | Collin Altamirano v Vadym Konovchuk | 3-6,6-3,7-5 |
| ITF M15 Pazardzhik | 2023/05/22 12:00 | Francesco Ferrari v Collin Altamirano | 1-6,0-6 |
| ITF M15 Antalya | 2023/05/17 06:55 | Collin Altamirano v Paul Woerner | 5-7,6-7 |
| ITF M15 Antalya | 2023/05/16 08:40 | Saveliy Ivanov v Collin Altamirano | 4-6,3-6 |