Stadium: Court 11 Round: 25
| Challenger Seoul | 2018/04/30 04:45 | Mackenzie McDonald v Uisung Park | 7-5,6-2 |
| ITF USA F9 | 2018/04/03 14:00 | Uisung Park v Harry Bourchier | 5-7,1-6 |
| ITF Korea F8 | 2016/08/22 06:55 | Young Seok Kim v Uisung Park | 7-5,6-4 |
| Challenger Seoul | 2018/05/01 05:00 | Kamil Majchrzak v Yusuke Takahashi | 6-2,6-3 |
| Challenger Taipei | 2018/04/11 10:55 | Yusuke Takahashi v Chien Hsun Lo | 3-6,7-6,3-6 |
| Challenger Taipei | 2018/04/10 10:00 | Chun Hsin Tseng v Yusuke Takahashi | 6-7,1-6 |
| ITF Japan F5 | 2018/04/08 03:05 | Zhe Li v Yusuke Takahashi | 6-4,6-7,7-5 |
| ITF Japan F5 | 2018/04/05 02:00 | Shinji Hazawa v Yusuke Takahashi | 5-7,0-6 |
| 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 | Masaki Sasai 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 |