Stadium: KPI Park - Court 03 Ground: Hardcourt outdoor
Referee:
| ITF M15 Antalya | 2022/04/05 07:00 | Gengo Kikuchi v Lorenzo Gagliardo | 2-6,4-6 |
| ITF M15 Antalya | 2022/04/04 09:25 | Gengo Kikuchi v Sergis Kyratzis | 6-4,6-1 |
| ITF M15 Antalya | 2022/04/03 07:00 | Gengo Kikuchi v Besir Durguti | 6-3,6-2 |
| ITF M15 Akishima | 2019/06/13 04:05 | Keisuke Saitoh v Gengo Kikuchi | 7-5,6-0 |
| ITF M15 Guam | 2019/06/09 00:00 | Gengo Kikuchi v Hiroyasu Ehara | 6-2,6-2 |
| ITF M15 Guam | 2019/06/08 00:00 | Gengo Kikuchi v Kento Takeuchi | 6-2,7-5 |
| ITF M15 Guam | 2019/06/07 01:50 | Jordi Samper-Montana v Gengo Kikuchi | 2-6,0-6 |
| ITF M15 Guam | 2019/06/06 02:55 | Kento Tagashira v Gengo Kikuchi | 2-6,2-6 |
| UTR Pro Yokohama | 2025/02/01 08:10 | Toshiki Karigyo v Natsuki Yamamoto | 2-6,6-3,3-6 |
| UTR Pro Yokohama | 2025/01/31 23:45 | Mao Takada v Natsuki Yamamoto | 1-6,6-2,3-6 |
| UTR Pro Yokohama | 2025/01/31 02:35 | Natsuki Yamamoto v Daiki Sato | 6-2,6-7,6-2 |
| UTR Pro Yokohama | 2025/01/30 04:20 | Natsuki Yamamoto v Kazuki Sugimoto | 5-7,2-6 |
| UTR Pro Yokohama | 2025/01/29 01:00 | Jumpei Yamasaki v Natsuki Yamamoto | 6-4,7-5 |
| UTR Pro Yokohama | 2025/01/28 03:00 | Issei Okamura v Natsuki Yamamoto | 3-6,3-6 |
| UTR Pro Noda | 2025/01/12 00:00 | Natsuki Yamamoto v Yusuke Yoshikawa | 6-3,6-0 |
| UTR Pro Noda | 2025/01/11 00:00 | Natsuki Yamamoto v Kairi Inoue | 6-4,1-6,6-2 |