
Jan Lennard Struff defeated Casper Ruud 6-4 6-4 6-2 in the US Open round of 128 on hard. The upset overturned the form book — Casper Ruud came in ranked #13, defending last year's round of 128. Jan Lennard Struff extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-09-27 | Beijing | R32 | hard | Casper Ruud | 7-6(5) 6-3 |
| 2023-04-10 | Monte Carlo Masters | R16 | clay | Jan Lennard Struff | 6-1 7-6(6) |
| 2017-04-17 | Monte Carlo Masters | R64 | clay | Jan Lennard Struff | 6-4 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 (200 vs 199). ATP, WTA & Challenger.