Thai Son Kwiatkowski defeated Stefan Kozlov 6-2 6-1 in the Little Rock CH round of 32 on hard. The upset overturned the form book — Stefan Kozlov came in ranked #296, leading the head-to-head 1–0. Thai Son Kwiatkowski claimed a first win over Stefan Kozlov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-02-06 | Dallas | Q1 | hard | Stefan Kozlov | 6-3 6-4 |
Averages over each player's completed matches in the selected window (149 vs 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Kozlov S.: 6 days rest · 2 matches, 54 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About