

Tallon Griekspoor defeated Casper Ruud 3-6 6-1 6-2 in the Koblenz CH round of 16 on hard. The upset overturned the form book — Casper Ruud came in ranked #13, leading the head-to-head 2–1. Tallon Griekspoor narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-10-14 | Stockholm | QF | hard | Tallon Griekspoor | 7-5 7-6(5) |
| 2024-01-01 | United Cup | RR | hard | Casper Ruud | 6-3 6-4 |
| 2021-03-15 | Acapulco | R16 | hard | Casper Ruud | 4-6 6-3 7-6(3) |
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 (198 vs 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Griekspoor T.: 14 days rest · 1 match (14d) · Ruud C.: 15 days rest. Higher means fresher. About