Stadium: Court 6 Round: 26 Ground: Clay
| 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 Vietnam F3 | 2018/05/15 05:45 | Phuong Van Nguyen v Gengo Kikuchi | 4-6,2-6 |
| ITF Vietnam F3 | 2018/05/13 04:00 | Gengo Kikuchi v Thanapet Chanta | 7-6,6-4 |
| ITF Japan F8 | 2018/06/13 03:20 | Shinji Hazawa v Thomas Fancutt | 6-1,6-2 |
| ITF Japan F7 | 2018/06/05 02:45 | Yuga Tashiro v Shinji Hazawa | 7-5,7-6 |
| ITF Japan F6 Qual | 2018/04/08 01:00 | Shinji Hazawa v Teppei Uesugi | 6-4,4-6,6-7 |
| ITF Japan F5 | 2018/04/05 02:00 | Shinji Hazawa v Yusuke Takahashi | 5-7,0-6 |
| ITF Japan F5 | 2018/04/04 01:00 | Chuhan Wang v Shinji Hazawa | 5-7,5-7 |
| ITF Japan F5 | 2018/04/02 06:25 | Yuki Mochizuki v Shinji Hazawa | 0-6,0-6 |
| ITF Japan F5 | 2018/04/01 00:30 | Shinji Hazawa v Jie Cui | 5-7,6-2,7-6 |
| ITF Japan F4 | 2018/03/26 01:00 | Shinji Hazawa v Jack Murray | 4-6,5-7 |