Kei Nishikori defeated Stefanos Tsitsipas 6-3 6-3 in the Tokyo quarter-final on hard. The upset overturned the form book — Stefanos Tsitsipas came in ranked #51, leading the head-to-head 2–1, defending last year's round of 32. Kei Nishikori narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-10-02 | Shanghai Masters | R64 | hard | Stefanos Tsitsipas | 7-6 6-4 |
| 2024-08-05 | Canada Masters | R32 | hard | Kei Nishikori | 6-4 6-4 |
| 2021-03-22 | Miami Masters | R32 | hard | Stefanos Tsitsipas | 6-3 3-6 6-1 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Tsitsipas S.: 3 days rest · 4 matches, 123 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
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About