Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| ITF Japan F5 | 2017/04/05 02:10 | Kikuchi, Gengo v Shintaro Imai | 4-6,6-4,3-6 |
| ITF - M15 Kashiwa | 2019/04/01 03:00 | Kaito Uesugi v Kikuchi, Gengo | 2-6,3-6 |
| ITF - M15 Kashiwa | 2019/04/01 00:00 | Yuichiro Inui v Kikuchi, Gengo | 4-6,2-6 |
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/21 06:55 | Veldheer, Mick v Kikuchi, Gengo | 7-6,6-3 |
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/19 01:00 | Kikuchi, Gengo v Blake Ellis | 7-5,6-1 |
| ITF - M15 Nishi-Tokyo | 2019/03/13 02:20 | Hong, Seong Chan v Kikuchi, Gengo | 4-6,6-3,7-6 |
| ITF - M15 Nishi-Tokyo | 2019/03/12 01:00 | Kikuchi, Gengo v Masaya Kobayashi | 4-6,7-5,10-6 |
| ITF - M15 Nishi-Tokyo | 2019/03/11 02:00 | Kikuchi, Gengo v Yeung, Pak Long | 6-4,6-2 |
| Nishi-Tama, Simples M-ITF-JPN-01A | 2019/03/08 02:30 | Kikuchi, Gengo v Jumpei Yamasaki | 6-7,6-4,3-6 |
| ITF - M15 Tsukuba | 2019/03/31 02:00 | Jumpei Yamasaki v Shintaro Imai | 4-6,4-6 |
| ITF - M15 Tsukuba | 2019/03/30 01:00 | Naoki Tajima v Shintaro Imai | 1-6,2-6 |
| 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 | Ryota Tanuma v Shintaro Imai | 5-7,3-6 |
| ITF - M15 Tsukuba | 2019/03/26 03:20 | Shintaro Imai v Blake Ellis | 6-2,7-6 |
| ITF - M15 Nishi-Tokyo | 2019/03/15 01:00 | Sekiguchi, Shuichi v Shintaro Imai | 6-3,6-0 |
| ITF - M15 Nishi-Tokyo | 2019/03/14 01:00 | Shintaro Imai v Jumpei Yamasaki | 3-6,6-3,6-3 |
| ITF - M15 Nishi-Tokyo | 2019/03/13 03:50 | Shintaro Imai v Naoki Tajima | 6-1,6-4 |