Round: 25 Ground: Hardcourt outdoor
| ITF Hong Kong F1 | 2018/06/25 03:55 | Kazuki Nishiwaki v Makoto Ochi | 7-6,6-2 |
| ITF Singapore F2 | 2018/05/24 04:55 | Kazuki Nishiwaki v Makoto Ochi | 6-2,7-5 |
| Challenger Zhangjiagang | 2019/03/20 02:00 | Stefano Napolitano v Makoto Ochi | 2-6,6-3,6-4 |
| Challenger Zhangjiagang | 2019/03/18 08:10 | Ivan Gakhov v Makoto Ochi | 6-3,1-6,4-6 |
| ITF M15 Nishi-Tokyo | 2019/03/14 02:25 | Makoto Ochi v Takuto Niki | 3-6,6-3,1-6 |
| ITF M15 Nishi-Tokyo | 2019/03/12 05:00 | Makoto Ochi v Seita Watanabe | 6-1,6-2 |
| Challenger Yokohama | 2019/02/25 07:55 | Yan Bai v Makoto Ochi | 6-2,0-6,7-5 |
| Challenger Launceston | 2019/01/28 23:00 | Makoto Ochi v Maverick Banes | 1-6,1-6 |
| Challenger Da Nang | 2019/01/07 07:30 | Makoto Ochi v Benjamin Hassan | 6-3,0-6,0-6 |
| ITF Hong Kong F3 | 2018/12/25 02:00 | Wishaya Trongcharoenchaikul v Makoto Ochi | 6-1,7-6 |
| ITF M15 Kofu | 2019/03/20 05:10 | Mick Veldheer v Kazuki Nishiwaki | 4-6,6-1,6-4 |
| ITF M15 Sharm El Sheikh | 2019/02/18 12:15 | Kazuki Nishiwaki v Giorgio Ricca | 7-5,6-7,6-10 |
| ITF M15 Sharm El Sheikh | 2019/02/18 07:30 | Kazuki Nishiwaki v Mathys Erhard | 6-0,6-1 |
| ITF M15 Anning | 2019/01/12 05:05 | Kazuki Nishiwaki v Agustin Velotti | 6-7,2-6 |
| ITF M15 Anning | 2019/01/11 04:40 | Kazuki Nishiwaki v Nitin Kumar Sinha | 6-7,6-2,6-4 |
| ITF M15 Anning | 2019/01/10 03:00 | Taisei Ichikawa v Kazuki Nishiwaki | 5-7,3-6 |
| ITF M15 Anning | 2019/01/08 04:20 | Kazuki Nishiwaki v Tianjia Guo | 6-1,6-1 |
| ITF M15 Anning | 2019/01/03 05:30 | Eric Vanshelboim v Kazuki Nishiwaki | 4-6,6-1,6-4 |