Stadium: Court 1 Round: 45
| Challenger Chennai Qual | 2018/02/10 05:50 | Vishnu Vardhan v Ramakrishnan Rangaraju | 6-3,6-0 |
| Challenger Quimper Qual | 2018/01/27 15:10 | Maxime Tabatruong v Vishnu Vardhan | 7-6,6-1 |
| Challenger Koblenz Qual | 2018/01/15 09:00 | Nino Serdarusic v Vishnu Vardhan | 6-1,6-3 |
| Challenger Koblenz Qual | 2018/01/14 10:35 | Vishnu Vardhan v Ruan Roelofse | 6-7,7-6,7-5 |
| ATP Pune Qual | 2017/12/30 07:30 | Carlos Taberner v Vishnu Vardhan | 5-7,6-2,7-6 |
| Australian Open WC | 2017/11/29 03:45 | Tsung-Hua Yang v Vishnu Vardhan | 4-6,7-5,4-6 |
| Challenger Bangalore | 2017/11/21 09:55 | Vishnu Vardhan v Mario Vilella Martinez | 3-6,3-6 |
| Challenger Pune | 2017/11/13 07:55 | Aleksandr Nedovyesov v Vishnu Vardhan | 6-3,4-6,7-6 |
| 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 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 |