Stadium: Court 5 Round: 45
| Challenger Yokohama Qual | 2018/02/24 05:10 | Hiroki Moriya v Shuichi Sekiguchi | 6-2,6-4 |
| Challenger Kyoto Qual | 2018/02/17 06:10 | Yuya Kibi v Shuichi Sekiguchi | 6-3,6-2 |
| Challenger Ningbo Qual | 2017/10/15 07:50 | Shuichi Sekiguchi v Yunseong Chung | 4-6,3-6 |
| Challenger Kaohsiung | 2017/10/03 05:40 | Shuichi Sekiguchi v Akira Santillan | 3-6,4-6 |
| Challenger Gwangju | 2017/09/19 01:30 | Shuichi Sekiguchi v Tsung-Hua Yang | 5-7,6-7 |
| Challenger Shanghai | 2017/09/12 06:35 | Alexander Kudryavtsev v Shuichi Sekiguchi | 6-4,4-6,2-6 |
| Challenger Zhangjiagang | 2017/09/07 04:35 | Shuichi Sekiguchi v Mohamed Safwat | 7-6,1-6,3-6 |
| Challenger Zhangjiagang | 2017/09/05 08:00 | Shuichi Sekiguchi v Kento Takeuchi | 6-4,6-3 |
| Challenger Shenzhen Qual | 2018/03/11 02:40 | Cheong-Eui Kim v Gerard Granollers-Pujol | 4-6,6-3,7-5 |
| Challenger Zhuhai Qual | 2018/03/05 02:00 | Maverick Banes v Gerard Granollers-Pujol | 6-3,6-2 |
| Challenger Zhuhai Qual | 2018/03/04 03:45 | Jacob Grills v Gerard Granollers-Pujol | 2-6,6-4,2-6 |
| Challenger Zhuhai Qual | 2018/03/03 03:20 | Ruikai Wang v Gerard Granollers-Pujol | 5-7,4-6 |
| Challenger Chennai | 2018/02/14 07:10 | Antoine Escoffier v Gerard Granollers-Pujol | 7-6,6-2 |
| Challenger Chennai | 2018/02/12 04:30 | Mukund Sasikumar v Gerard Granollers-Pujol | 3-6,2-6 |
| Challenger Launceston Qual | 2018/02/02 23:00 | Gerard Granollers-Pujol v N. Vijay Sundar Prashanth | 6-3,2-6,3-6 |
| Challenger Burnie | 2018/01/31 00:50 | Marcel Granollers v Gerard Granollers-Pujol | 6-3,6-4 |