Dalwinder Singh defeated Kaza Vinayak Sharma 7-6 6-3 in the M15 Lucknow 1 round of 32 on hard. The upset overturned the form book — Kaza Vinayak Sharma came in leading the head-to-head 2–0, but Dalwinder Singh had been the form player, winning 6 of their last 9 on hard. Dalwinder Singh claimed a first win over Kaza Vinayak Sharma in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-02-26 | India F1 | R16 | hard | Kaza Vinayak Sharma | 6-3 6-4 |
| 2016-09-12 | India F5 | R16 | hard | Kaza Vinayak Sharma | 2-0 |