Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Matsuyama | 2019/04/11 01:00 | Naoki Tajima v Kousuke Ogura | 6-4,6-0 |
| ITF M25 Matsuyama | 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 Kento Takeuchi | 2-6,4-6 |
| ITF M15 Tsukuba | 2019/03/25 04:45 | Shao-Fan Liu v Kousuke Ogura | 7-5,6-7,10-6 |
| ITF M15 Kofu | 2019/03/20 03:30 | Kousuke Ogura v Min-Kyu Song | 3-6,6-3,3-6 |
| ITF M15 Kofu | 2019/03/18 04:30 | Masamichi Imamura v Kousuke Ogura | 2-6,6-4,10-6 |
| ITF M15 Kofu | 2019/03/18 00:30 | Kazuki Shimizu v Kousuke Ogura | 6-7,5-7 |
| ITF M15 Nishi-Tokyo | 2019/03/13 05:55 | Kousuke Ogura v Ryota Tanuma | 2-6,6-7 |
| ITF M25 Matsuyama | 2019/04/09 01:00 | Rimpei Kawakami v Rinky Hijikata | 4-6,2-6 |
| ITF M15 Mornington | 2019/03/26 05:20 | Rimpei Kawakami v Thomas Bosancic | 4-6,6-7 |
| ITF M15 Mornington | 2019/03/20 23:00 | Rimpei Kawakami v Thomas Fancutt | 3-6,4-6 |
| ITF M15 Mornington | 2019/03/20 02:05 | Rimpei Kawakami v Alexander Klintcharov | 6-4,6-2 |
| ITF M15 Nishi-Tokyo | 2019/03/14 01:00 | Rimpei Kawakami v Yuta Shimizu | 6-7,6-2,1-6 |
| ITF M15 Nishi-Tokyo | 2019/03/13 05:25 | Rimpei Kawakami v Issei Okamura | 6-2,6-1 |
| ITF M15 Nishi-Tokyo | 2019/03/12 02:35 | Rimpei Kawakami v Daisuke Sumizawa | 6-2,6-1 |
| ITF M15 Nishi-Tokyo | 2019/03/11 03:30 | Rimpei Kawakami v Tsung-Hao Huang | 6-3,6-1 |