Stadium: Central Court Round: 46
| Challenger Taipei | 2018/04/11 06:35 | Shuichi Sekiguchi v Dudi Sela | 4-6,2-6 |
| Challenger Taipei Qual | 2018/04/08 07:25 | Toshihide Matsui v Shuichi Sekiguchi | 5-7,6-7 |
| Challenger Taipei Qual | 2018/04/07 08:20 | Vishnu Vardhan v Shuichi Sekiguchi | 4-6,5-7 |
| ITF Japan F4 | 2018/03/27 01:00 | Jacob Grills v Shuichi Sekiguchi | 7-6,4-6,6-3 |
| ITF Japan F3 | 2018/03/22 04:05 | Shuichi Sekiguchi v Sho Katayama | 5-7,6-4,2-6 |
| ITF Japan F3 | 2018/03/19 01:00 | Shuichi Sekiguchi v Jumpei Yamasaki | 6-7,7-6,6-2 |
| ITF Japan F2 | 2018/03/12 02:30 | Seong Chan Hong v Shuichi Sekiguchi | 6-4,1-6,7-6 |
| Challenger Yokohama Qual | 2018/02/24 05:10 | Hiroki Moriya v Shuichi Sekiguchi | 6-2,6-4 |
| Challenger Nanchang Qual | 2018/04/14 03:00 | Yuanfeng Li v Vishnu Vardhan | 6-2,6-4 |
| Challenger Qujing Qual | 2018/03/17 04:20 | Yuanfeng Li v Luke Saville | 1-6,3-6 |
| Challenger Shenzhen Qual | 2018/03/11 05:05 | Yuanfeng Li v Hiroki Moriya | 5-7,6-4,4-6 |
| Challenger Zhuhai Qual | 2018/03/03 02:00 | Yuanfeng Li v Igor Zelenay | 6-4,4-6,2-6 |
| ITF China F3 | 2018/01/23 06:05 | Yuanfeng Li v Shao-Fan Liu | 1-6,6-3,3-6 |
| ITF China F2 | 2018/01/16 02:00 | Tyler Lu v Yuanfeng Li | 6-4,6-2 |
| ITF China F2 Qual | 2018/01/14 02:00 | Yuanfeng Li v Hadzhymyrat Charyyev | 6-2,6-3 |
| ITF China F1 | 2018/01/08 03:05 | Seong-Gook Oh v Yuanfeng Li | 7-6,6-2 |