Stadium: Court 10 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Matsuyama | 2019/04/10 03:30 | Takuto Niki v Sho Katayama | 6-2,6-3 |
| ITF M15 Kashiwa | 2019/04/04 02:35 | Yunosuke Tanaka v Takuto Niki | 7-6,1-6,6-1 |
| ITF M15 Kashiwa | 2019/04/03 05:20 | Takuto Niki v Shuichi Sekiguchi | 2-6,6-3,7-6 |
| ITF M15 Tsukuba | 2019/03/28 02:10 | Ryohei Tagata v Takuto Niki | 3-6,6-2,7-5 |
| ITF M15 Tsukuba | 2019/03/27 01:00 | Takuto Niki v Takashi Saito | 6-4,6-2 |
| ITF M15 Kofu | 2019/03/23 01:00 | Takuto Niki v Sho Shimabukuro | 5-7,3-6 |
| ITF M15 Kofu | 2019/03/22 02:05 | Takuto Niki v Hiroyasu Ehara | 6-3,6-4 |
| ITF M15 Kofu | 2019/03/21 04:40 | Takuto Niki v Sho Katayama | 4-6,7-6,6-4 |
| ITF M25 Matsuyama | 2019/04/10 03:30 | Yuki Mochizuki v Shinji Hazawa | 6-0,6-2 |
| ITF M15 Kashiwa | 2019/04/07 03:30 | Yuki Mochizuki v Jumpei Yamasaki | 2-6,6-2,2-6 |
| ITF M15 Kashiwa | 2019/04/06 01:00 | Yuki Mochizuki v Yusuke Takahashi | 7-6,6-4 |
| ITF M15 Kashiwa | 2019/04/05 01:00 | Sho Shimabukuro v Yuki Mochizuki | 6-2,5-7,3-6 |
| ITF M15 Kashiwa | 2019/04/04 01:00 | Yuki Mochizuki v Kuan-Yi Lee | 2-6,6-3,6-4 |
| ITF M15 Kashiwa | 2019/04/02 02:40 | Yuki Mochizuki v Hikaru Shiraishi | 3-6,6-4,7-6 |
| ITF M15 Tsukuba | 2019/03/29 01:00 | Yuki Mochizuki v Shintaro Imai | 3-6,6-1,4-6 |
| ITF M15 Tsukuba | 2019/03/28 01:00 | Kuan-Yi Lee v Yuki Mochizuki | 2-6,6-1,5-7 |