Stadium: Court 1 Round: 25 Ground: Clay
| ITF Japan F7 | 2017/06/07 01:00 | Masaki Sasai v Yusuke Takahashi | 3-6,4-6 |
| ITF Japan F3 | 2018/03/18 01:30 | Issei Okamura v Masaki Sasai | 6-3,6-1 |
| ITF Japan F3 | 2018/03/17 04:00 | Ryohei Tagata v Masaki Sasai | 5-7,6-3,2-6 |
| ITF Japan F2 | 2018/03/12 00:30 | Jack Murray v Masaki Sasai | 6-4,6-3 |
| ITF Japan F1 | 2018/03/07 01:00 | Masaki Sasai v Yuta Shimizu | 5-7,6-7 |
| ITF Japan F1 | 2018/03/06 01:00 | Sho Shimabukuro v Masaki Sasai | 6-7,3-6 |
| ITF Japan F1 | 2018/03/04 03:00 | Keisuke Numajiri v Masaki Sasai | 1-6,6-3,0-6 |
| ITF Japan F1 | 2018/03/03 05:30 | Kazuki Shimizu v Masaki Sasai | 3-6,2-6 |
| Challenger Toyota Qual | 2017/11/11 02:15 | Chu-Huan Yi v Masaki Sasai | 4-6,6-3,6-4 |
| Challenger Qujing | 2018/03/19 02:00 | Yusuke Takahashi v Ti Chen | 6-2,6-3 |
| 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 |