Round: 62 Ground: Clay
| ITF Japan F4 | 2018/03/24 00:00 | Wei-De Lin v Yasunori Hashikawa | 6-2,6-2 |
| ITF Japan F3 | 2018/03/17 00:30 | Yasunori Hashikawa v Naoya Maesaki | 4-6,4-6 |
| ITF Japan F2 | 2018/03/11 00:30 | Issei Okamura v Yasunori Hashikawa | 6-2,6-1 |
| ITF Japan F1 | 2018/03/04 01:00 | Jack Murray v Yasunori Hashikawa | 6-2,6-2 |
| ITF Japan F1 | 2018/03/03 01:00 | Yasunori Hashikawa v Kenta Kurita | 6-2,6-4 |
| ITF Japan F7 Qual | 2018/06/03 01:00 | Yuichiro Inui v Masayoshi Ono | 7-5,6-2 |
| ITF Czech Republic F1 | 2018/05/12 09:00 | Adam Blecha v Masayoshi Ono | 6-3,6-2 |
| ITF Sweden F1 Qual | 2018/05/05 08:00 | Masayoshi Ono v Simon Yitbarek | 2-6,6-4,4-6 |
| ITF Japan F6 Qual | 2018/04/09 02:45 | Aoran Wang v Masayoshi Ono | 3-6,6-2,6-2 |
| ITF Japan F6 Qual | 2018/04/08 04:00 | Masayoshi Ono v Ken Onoda | 6-2,6-4 |
| ITF Greece F4 | 2018/03/18 09:30 | Maksim Tikhomirov v Masayoshi Ono | 7-6,6-2 |
| ITF Greece F4 | 2018/03/17 07:30 | Masayoshi Ono v Leevi Saatela | 6-1,6-0 |
| ITF Greece F3 | 2018/03/10 10:00 | Masayoshi Ono v Diego Matos | 5-7,4-6 |