
Kei Nishikori defeated Alexander Zverev 3-6 6-3 6-4 in the Monte Carlo Masters semi-final on clay. The upset overturned the form book — Alexander Zverev came in ranked #2, leading the head-to-head 5–0, defending last year's round of 16. Kei Nishikori claimed a first win over Alexander Zverev in six meetings, narrowing 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 |
| 2017-07-31 | Washington | SF | hard | Alexander Zverev | 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 clay field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (200 vs 199). 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 · 4 matches, 148 games (7d). Higher means fresher. About