

Casper Ruud defeated Reilly Opelka 4-6 6-4 6-4 in the Houston round of 16 on clay. The result followed the form book — Casper Ruud came in ranked #13, leading the head-to-head 4–1. Casper Ruud extended the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-09-19 | Laver Cup | RR | hard | Casper Ruud | 6-4 7-6(4) |
| 2022-05-16 | Geneva | SF | clay | Casper Ruud | 7-6(2) 7-5 |
| 2021-09-24 | Laver Cup | RR | hard | Casper Ruud | 6-3 7-6(4) |
| 2021-08-16 | Cincinnati Masters | R32 | hard | Casper Ruud | 6-7(5) 6-0 7-6(4) |
| 2017-01-16 | Australian Open | Q3 | hard | Reilly Opelka | 7-6(2) 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 clay field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (199 vs 199). ATP, WTA & Challenger.