Stefan Kozlov advanced when Botic Van De Zandschulp retired 6-3 1-0 in the Acapulco qualifying final. Stefan Kozlov extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-03-15 | Acapulco | Q3 | hard | Stefan Kozlov | 6-3 1-0 RET |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (199 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Kozlov S.: 4 days rest · 3 matches, 72 games (7d) · Van De Zandschulp B.: 13 days rest · 1 match (14d). Higher means fresher. About