Stadium: Court F Round: 62 Ground: Hardcourt outdoor
| ITF Japan F1 | 2018/03/03 01:00 | Kikuchi, Gengo v Kureoka, Takuya | 6-4,7-6 |
| ITF Japan F8 | 2017/06/15 03:30 | Kikuchi, Gengo v Nagao, Katsuki | 6-2,6-2 |
| ITF Japan F8 | 2017/06/14 04:00 | Kikuchi, Gengo v Matsuo, Yuki | 6-0,6-4 |
| ITF Japan F7 | 2017/06/06 01:00 | Kikuchi, Gengo v Sora Fukuda | 2-6,2-6 |
| ITF Japan F6 | 2017/06/02 08:15 | Renta Tokuda v Kikuchi, Gengo | 4-6,6-1,6-3 |
| ITF Japan F6 | 2017/05/31 01:00 | Kikuchi, Gengo v Sekiguchi, Shuichi | 6-4,6-2 |
| ITF Japan F6 | 2017/05/29 04:20 | Kishi, Ryota v Kikuchi, Gengo | 7-6,3-6,2-6 |
| ITF Japan F5 | 2017/04/05 02:10 | Kikuchi, Gengo v Shintaro Imai | 4-6,6-4,3-6 |
| ITF Japan F1 | 2018/03/04 01:00 | Tomohiro Masabayashi v Masaya Kobayashi | 1-6,6-3,5-7 |
| ITF Turkey F7 | 2018/02/21 14:25 | Balazs, Attila v Masaya Kobayashi | 6-1,6-3 |
| ITF Turkey F7 | 2018/02/19 07:00 | Masaya Kobayashi v Apostol, Bogdan Ionut | 4-6,6-3,4-6 |
| ITF Turkey F7 | 2018/02/18 09:00 | Michiel de Krom v Masaya Kobayashi | 2-6,1-6 |
| ITF Turkey F7 | 2018/02/17 06:30 | Myagkov, Dmitry v Masaya Kobayashi | 2-6,3-6 |
| Turkey F6, Singles Qualifying | 2018/02/12 07:00 | Sho Shimabukuro v Masaya Kobayashi | 6-7,6-3,6-2 |
| Turkey F6, Singles Qualifying | 2018/02/11 09:00 | Masaya Kobayashi v Felipe Meligeni Rodrigues Alves | 6-2,6-1 |
| Turkey F6, Singles Qualifying | 2018/02/10 09:00 | Masaya Kobayashi v Mert Alkaya | 6-3,6-3 |