Ramkumar Ramanathan defeated Yunseok Jang 6-1 6-2 in the M25 New Delhi 1 round of 16 on hard. The upset overturned the form book — Yunseok Jang came in ranked #1165, leading the head-to-head 1–0. Ramkumar Ramanathan claimed a first win over Yunseok Jang in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-04-12 | M25 Jakarta 1 | R32 | hard | Yunseok Jang | 6-1 6-4 |
Averages over each player's completed matches in the selected window (59 vs 1). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About