Stadium: Court 5 Round: 45 Ground: Hardcourt outdoor
| 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 M15 Kofu | 2019/03/20 01:00 | Hong Kit Wong v Takuto Niki | 6-3,4-6,2-6 |
| ITF - M15 Nishi-Tokyo | 2019/03/16 01:00 | Takuto Niki v Shuichi Sekiguchi | 4-6,7-6,3-6 |
| ITF - M15 Nishi-Tokyo | 2019/03/15 01:00 | Takuto Niki v Yuta Shimizu | 7-6,1-6,6-3 |
| ITF M15 Kashiwa | 2019/04/01 00:00 | Masayoshi Ono v Bart Stevens | 3-6,2-6 |
| ITF M15 Tsukuba | 2019/03/27 01:00 | Bart Stevens v Yunosuke Tanaka | 6-4,4-6,2-6 |
| ITF M15 Tsukuba | 2019/03/25 04:45 | Bart Stevens v Tomohiro Masabayashi | 6-7,6-3,10-3 |
| ITF M15 Kofu | 2019/03/18 00:30 | Bart Stevens v Yunosuke Tanaka | 6-3,5-7,6-10 |
| ITF M15 Oslo | 2019/03/08 09:00 | Bart Stevens v Savriyan Danilov | 2-6,6-4,5-7 |
| ITF M15 Oslo | 2019/03/06 09:00 | Bart Stevens v Marcus Mansson | 7-6,7-6 |
| ITF M15 Oslo | 2019/03/05 09:00 | Bart Stevens v Piotr Matuszewski | 2-6,6-1,10-8 |
| ITF Turkey F40 | 2018/12/13 07:00 | Bart Stevens v Pavel Kotov | 4-6,7-5,2-6 |