Stadium: Court 4 Round: 45
| Challenger Samarkand Qual | 2018/05/12 06:10 | Roman Safiullin v Vishnu Vardhan | 6-2,7-6 |
| Challenger Anning | 2018/04/24 04:20 | Mohamed Safwat v Vishnu Vardhan | 3-6,7-6,6-2 |
| Challenger Anning Qual | 2018/04/22 05:10 | Ti Chen v Vishnu Vardhan | 2-6,4-6 |
| Challenger Anning Qual | 2018/04/21 04:30 | Tyler Lu v Vishnu Vardhan | 2-6,3-6 |
| Challenger Nanchang Qual | 2018/04/14 03:00 | Yuanfeng Li v Vishnu Vardhan | 6-2,6-4 |
| Challenger Taipei Qual | 2018/04/07 08:20 | Vishnu Vardhan v Shuichi Sekiguchi | 4-6,5-7 |
| Challenger Chennai Qual | 2018/02/10 05:50 | Vishnu Vardhan v Ramakrishnan Rangaraju | 6-3,6-0 |
| Challenger Quimper - Kval | 2018/01/27 15:10 | Maxime Tabatruong v Vishnu Vardhan | 7-6,6-1 |
| Challenger Gimcheon Qual | 2018/05/07 05:00 | Renta Tokuda v Brydan Klein | 1-6,6-3,6-4 |
| Challenger Gimcheon Qual | 2018/05/06 05:50 | Jinseok Yu v Brydan Klein | 3-6,4-6 |
| Challenger Puerto Vallarta | 2018/05/01 19:05 | Brydan Klein v Felipe Mantilla | 4-6,7-6,1-6 |
| Challenger Guadalajara Qual | 2018/04/15 20:05 | Brydan Klein v James Ward | 5-7,4-6 |
| Challenger Guadalajara Qual | 2018/04/14 22:10 | Andrew Harris v Brydan Klein | 2-6,7-5,6-7 |
| ITF Japan F1 | 2018/03/07 06:00 | Soichiro Moritani v Brydan Klein | 7-6,7-5 |
| Challenger Yokohama Qual | 2018/02/24 05:00 | Brydan Klein v Makoto Ochi | 4-6,6-7 |
| Challenger Kyoto | 2018/02/21 01:30 | John Millman v Brydan Klein | 7-6,6-7,6-3 |