
Alexander Zverev defeated Kei Nishikori 6-3 6-4 in the Washington semi-final on hard. The result followed the form book — Alexander Zverev came in ranked #3, leading the head-to-head 4–1, defending last year's semi-final. Alexander Zverev extended the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-05-31 | Roland Garros | R16 | clay | Alexander Zverev | 6-4 6-1 6-1 |
| 2021-05-10 | Rome Masters | R16 | clay | Alexander Zverev | 4-6 6-3 6-4 |
| 2021-05-03 | Madrid Masters | R32 | clay | Alexander Zverev | 6-3 6-2 |
| 2018-07-30 | Washington | QF | hard | Alexander Zverev | 3-6 6-1 6-4 |
| 2018-04-16 | Monte Carlo Masters | SF | clay | Kei Nishikori | 3-6 6-3 6-4 |
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
Zverev A.: 2 days rest · 3 matches, 103 games (7d). Higher means fresher. About