Stadium: Court 6 Round: 27 Ground: Clay
| ITF Japan F5 | 2018/04/04 01:00 | Wang, Chuhan 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 Murray, Jack | 4-6,5-7 |
| ITF Japan F3 | 2018/03/22 03:00 | Hong, Seong Chan v Shinji Hazawa | 7-6,6-3 |
| ITF Japan F3 | 2018/03/19 03:15 | Shinji Hazawa v Niki, Takuto | 7-5,6-3 |
| ITF Japan F3 | 2018/03/18 01:00 | Shinji Hazawa v Kawakami, Rimpei | 6-3,6-3 |
| ITF Japan F3 | 2018/03/17 04:00 | Shinji Hazawa v Maesaki, Naoya | 4-6,6-2,6-1 |
| ITF Japan F5 | 2018/04/04 05:10 | Naoki Tajima v Yusuke Takahashi | 4-6,2-6 |
| ITF Japan F5 | 2018/04/02 03:40 | Sasai, Masaki v Yusuke Takahashi | 6-3,3-6,3-6 |
| Challenger Qujing | 2018/03/21 04:55 | Hubert Hurkacz v Yusuke Takahashi | 7-5,6-3 |
| Challenger Qujing | 2018/03/19 02:00 | Yusuke Takahashi v Chen, Ti | 6-2,6-3 |
| Shenzhen, China, Qualifying | 2018/03/11 02:45 | Grills, Jacob v Yusuke Takahashi | 4-6,6-4,2-6 |
| Challenger Zhuhai | 2018/03/06 06:40 | Yusuke Takahashi v Jaziri, Malek | 1-6,2-6 |
| Challenger Zhuhai Qual | 2018/03/05 02:00 | Yusuke Takahashi v Renta Tokuda | 6-4,6-4 |
| Challenger Zhuhai Qual | 2018/03/04 06:30 | Yusuke Takahashi v Podzus, Martins | 2-6,6-2,6-4 |