Sunil Kumar defeated Harsh Mankad 6-3 6-3 in the India F4 round of 32 on hard. The upset overturned the form book — Harsh Mankad came in leading the head-to-head 2–0. Sunil Kumar claimed a first win over Harsh Mankad in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-11-24 | India F7 | SF | hard | Harsh Mankad | 2-6 6-1 6-4 |
| 2003-03-17 | India F4 | R32 | hard | Harsh Mankad | 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.