Stadium: Court 10 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Kofu | 2019/03/21 04:40 | Takuto Niki v Sho Katayama | 4-6,7-6,6-4 |
| ITF Japan F2 | 2017/03/16 04:05 | Sho Katayama v Takuto Niki | 3-6,7-6,6-4 |
| ITF Japan F5 | 2016/04/08 06:25 | Takuto Niki v Sho Katayama | 7-6,2-6,3-6 |
| 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 M15 Kofu | 2019/03/20 01:00 | Hong Kit Wong v Takuto Niki | 6-3,4-6,2-6 |
| 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 07:15 | Seita Watanabe v Sho Katayama | 3-6,2-6 |
| ITF - M15 Nishi-Tokyo | 2019/03/12 03:20 | Ryota Tanuma v Sho Katayama | 6-4,2-6,10-5 |
| ITF - M15 Nishi-Tokyo | 2019/03/11 01:00 | Shota Tange v Sho Katayama | 3-6,3-6 |
| ITF M15 Nishi-Tama | 2019/03/07 04:00 | Shintaro Imai v Sho Katayama | 6-2,6-3 |
| ITF M15 Nishi-Tama | 2019/03/06 02:25 | Sho Katayama v Yuta Kawahashi | 6-3,6-1 |
| ITF M15 Nishi-Tama | 2019/03/05 03:00 | Sho Katayama v Yuta Kawahashi | 4-6,5-7 |
| ITF M15 Nishi-Tama | 2019/03/05 01:00 | Sho Katayama v Masayoshi Ono | 6-4,6-4 |