Sunil Kumar defeated Tushar Liberhan 6-4 6-3 in the India 2 1 round of 16 on hard. The result followed the form book — Sunil Kumar came in leading the head-to-head 2–0. Sunil Kumar extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-09-08 | India F7 | R16 | hard | Sunil Kumar | 3-6 6-4 6-4 |
| 2006-05-22 | India F1 | R32 | hard | Sunil Kumar | 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.