Stadium: Court 2 Round: 25 Ground: Clay
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/18 00:30 | Shimizu, Kazuki v Kousuke Ogura | 6-7,5-7 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/10 03:30 | Brymer, Gage v Shimizu, Kazuki | 7-6,5-7,6-0 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/09 01:00 | Daisuke Sumizawa v Shimizu, Kazuki | 6-3,4-6,6-10 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/08 01:00 | Shimizu, Kazuki v Yuichiro Inui | 6-2,6-0 |
| ITF - M15 Tsukuba | 2019/03/25 01:00 | Veldheer, Mick v Shimizu, Kazuki | 6-1,6-4 |
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/18 00:30 | Shimizu, Kazuki v Kousuke Ogura | 6-7,5-7 |
| Nishi-Tama, Simples M-ITF-JPN-01A | 2019/03/05 01:00 | Shimizu, Kazuki v Daisuke Sumizawa | 2-6,2-6 |
| ITF Japan F8 | 2018/06/11 00:30 | Ryotaro Matsumura v Shimizu, Kazuki | 7-5,6-3 |
| ITF Japan F8 | 2018/06/09 05:30 | Shimizu, Kazuki v Yamanaka, Kyohei | 6-1,7-6 |
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/07 03:15 | Yu, Cheng-Yu v Kousuke Ogura | 6-4,6-3 |
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/06 07:50 | Kousuke Ogura v Kawakami, Rimpei | 6-4,6-4 |
| Wuhan, Singles Qualifying M-ITF-CHN-04A | 2019/05/01 07:15 | Kuan-Yi Lee v Kousuke Ogura | 6-3,6-2 |
| Wuhan, Singles Qualifying M-ITF-CHN-04A | 2019/04/30 02:00 | Zeng, Shi Hong v Kousuke Ogura | 2-6,7-6,7-10 |
| Wuhan, Singles Qualifying M-ITF-CHN-04A | 2019/04/29 03:45 | Kai, Wai Yu v Kousuke Ogura | 3-6,4-6 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/11 01:00 | Naoki Tajima v Kousuke Ogura | 6-4,6-0 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/09 03:00 | Congsup Congcar v Kousuke Ogura | 5-7,5-7 |
| ITF - M15 Kashiwa | 2019/04/01 00:00 | Kousuke Ogura v Takeuchi, Kento (1987) | 2-6,4-6 |