Stadium: Court 1 Round: 28 Ground: Clay
| ITF M25 Maribor Qual | 2016/11/12 07:45 | Gengo Kikuchi v Sho Katayama | 6-3,3-6,6-3 |
| ITF Japan F5 | 2014/06/05 01:00 | Sho Katayama v Gengo Kikuchi | 4-6,6-7 |
| ITF Japan F8 | 2018/06/15 01:30 | Yuya Kibi v Gengo Kikuchi | 6-4,4-6,3-6 |
| ITF Japan F8 | 2018/06/14 01:00 | Gengo Kikuchi v Shinji Hazawa | 6-4,6-3 |
| ITF Japan F8 | 2018/06/13 01:00 | Gengo Kikuchi v Masaya Kobayashi | 6-0,6-1 |
| ITF Japan F7 | 2018/06/09 03:20 | Takashi Saito v Gengo Kikuchi | 4-6,7-6,6-3 |
| ITF Japan F7 | 2018/06/08 01:00 | Sho Shimabukuro v Gengo Kikuchi | 4-6,4-6 |
| ITF Japan F7 | 2018/06/07 02:00 | Gengo Kikuchi v Yuga Tashiro | 6-2,6-2 |
| ITF Japan F7 | 2018/06/05 01:00 | Takuya Kumasaka v Gengo Kikuchi | 6-3,3-6,4-6 |
| ITF Vietnam F3 | 2018/05/16 03:00 | Cheng-Yu Yu v Gengo Kikuchi | 6-3,6-1 |
| ITF Japan F8 | 2018/06/15 04:05 | Sho Katayama v Kaito Uesugi | 6-3,7-6 |
| ITF Japan F8 | 2018/06/14 02:50 | Sho Katayama v Keisuke Watanuki | 6-2,6-0 |
| ITF Japan F8 | 2018/06/12 01:00 | Sho Katayama v Haru Inoue | 6-1,6-4 |
| ITF China F8 | 2018/06/08 04:10 | Sho Katayama v Hiroyasu Ehara | 0-6,2-6 |
| ITF China F8 | 2018/06/06 02:00 | Sho Katayama v Bang Shuo Yin | 6-2,6-4 |
| ITF China F8 | 2018/06/04 03:50 | Sho Katayama v Hao Wu | 6-2,6-2 |
| ITF Japan F6 | 2018/04/11 01:00 | Sho Katayama v Zhe Li | 1-6,6-3,4-6 |
| ITF Japan F5 | 2018/04/03 04:10 | Sho Katayama v Renta Tokuda | 2-6,4-6 |