stadio: Court 4 Round: 46 Ground: Hardcourt outdoor
| Challenger Zhuhai - Qual. | 2018/03/05 02:00 | Yusuke Takahashi v Renta Tokuda | 6-4,6-4 |
| ITF Giappone F6 | 2017/06/03 02:30 | Yusuke Takahashi v Renta Tokuda | 6-4,6-3 |
| ITF Giappone F2 | 2017/03/15 04:35 | Yusuke Takahashi v Renta Tokuda | 6-2,6-1 |
| ITF Vietnam F4 | 2016/09/13 03:00 | Renta Tokuda v Yusuke Takahashi | 2-6,4-6 |
| ITF Thailandia F3 | 2016/09/10 03:00 | Yusuke Takahashi v Renta Tokuda | 6-4,6-0 |
| Challenger Shenzhen - Qual. | 2018/03/11 03:10 | Toshihide Matsui v Renta Tokuda | 2-6,3-6 |
| Challenger Zhuhai - Qual. | 2018/03/05 02:00 | Yusuke Takahashi v Renta Tokuda | 6-4,6-4 |
| Challenger Zhuhai - Qual. | 2018/03/04 04:35 | Igor Zelenay v Renta Tokuda | 6-7,3-6 |
| Challenger Zhuhai - Qual. | 2018/03/03 04:50 | Xin Gao v Renta Tokuda | 3-6,1-6 |
| Challenger Yokohama - Qual. | 2018/02/24 02:35 | Tung-Lin Wu v Renta Tokuda | 6-1,6-4 |
| Challenger Launceston - Qual. | 2018/02/05 01:05 | Marinko Matosevic v Renta Tokuda | 6-1,4-6,6-4 |
| Challenger Launceston - Qual. | 2018/02/04 04:40 | Steven De Waard v Renta Tokuda | 7-5,2-6,1-6 |
| Challenger Launceston - Qual. | 2018/02/03 03:25 | Gavin Van Peperzeel v Renta Tokuda | 3-6,2-6 |
| Challenger Shenzhen - Qual. | 2018/03/11 02:45 | Jacob Grills v Yusuke Takahashi | 4-6,6-4,2-6 |
| Challenger Zhuhai | 2018/03/06 06:40 | Yusuke Takahashi v Malek Jaziri | 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 Martins Podzus | 2-6,6-2,6-4 |
| Challenger Zhuhai - Qual. | 2018/03/03 04:15 | Yusuke Takahashi v Tristan-Samuel Weissborn | 7-6,4-6,6-3 |
| Challenger Kyoto | 2018/02/20 01:30 | Yusuke Takahashi v Blake Ellis | 7-6,4-6,4-6 |
| Challenger Burnie | 2018/02/01 02:40 | Yusuke Takahashi v Daniel Altmaier | 6-7,3-6 |
| Challenger Burnie | 2018/01/31 00:45 | Kevin King v Yusuke Takahashi | 4-6,6-2,2-6 |