Sydney Zick defeated Yannik Kelm 6-2 6-1 in the M15 Klagenfurt 1 q16 on clay. The upset overturned the form book — Yannik Kelm came in ranked #463, leading the head-to-head 1–0. Sydney Zick claimed a first win over Yannik Kelm in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-07-22 | M25 Metzingen 1 | Q16 | clay | Yannik Kelm | 6-4 2-6 10-8 |
Averages over each player's completed matches in the selected window (1 vs 3). 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