Stadium: Court 3 Round: 54
| ITF Vietnam F1 | 2018/04/30 03:00 | Gengo Kikuchi v Chun Hsin Tseng | 2-6,7-6,4-6 |
| ITF Japan F5 | 2018/04/01 00:30 | Gengo Kikuchi v Shao-Fan Liu | 6-2,6-7,3-6 |
| ITF Japan F5 | 2018/03/31 00:30 | Gengo Kikuchi v Daisuke Sumizawa | 6-1,6-3 |
| ITF Japan F3 | 2018/03/20 06:00 | Tung-Lin Wu v Gengo Kikuchi | 6-2,6-3 |
| ITF Japan F3 | 2018/03/18 01:00 | Gengo Kikuchi v Kousuke Ogura | 6-3,6-2 |
| ITF Japan F3 | 2018/03/17 02:30 | Gengo Kikuchi v Ko Suzuki | 6-2,3-6,6-3 |
| ITF Japan F2 | 2018/03/11 04:00 | Gengo Kikuchi v Yuto Sakai | 2-6,2-6 |
| ITF Japan F1 | 2018/03/08 01:30 | Naoki Nakagawa v Gengo Kikuchi | 7-5,7-6 |
| ITF Vietnam F1 | 2018/04/29 05:30 | Darren Polkinghorne v Yuichiro Inui | 6-3,6-3 |
| ITF Japan F6 Qual | 2018/04/07 01:00 | David Barclay v Yuichiro Inui | 1-6,7-6,6-4 |
| ITF Japan F5 | 2018/03/31 00:30 | Yuichiro Inui v Shao-Fan Liu | 0-6,4-6 |
| ITF Turkey F10 | 2018/03/10 08:30 | Boris Butulija v Yuichiro Inui | 2-6,6-4,6-0 |
| ITF Turkey F9 | 2018/03/04 07:00 | Dragos Nicolae Madaras v Yuichiro Inui | 6-1,6-1 |
| ITF Turkey F8 | 2018/02/25 07:30 | Kenneth Raisma v Yuichiro Inui | 7-6,6-1 |
| ITF Turkey F7 | 2018/02/17 11:00 | Yuichiro Inui v Lukas Krainer | 2-6,1-6 |
| ITF Turkey F6 | 2018/02/10 09:00 | Yuichiro Inui v Felipe Meligeni Rodrigues Alves | 4-6,4-6 |