Jan Lennard Struff defeated Marius Copil 6-4 6-4 in the Madrid Masters round of 64 on clay. The upset overturned the form book — Marius Copil came in leading the head-to-head 3–1, defending last year's round of 32. Jan Lennard Struff narrowed the head-to-head to 3–2.
Struff J. took it in straight sets.
Struff J. and Copil M. faced 3 of the same opponents in the last 12 months. Struff J. went 2–1 (67%) against them, Copil M. 2–2 (50%). Results against comparable opponents are close (1 : 0 better-results split).
Only 3 common opponents — small sample, treat as indicative.
Clay: Struff J. leads 1–0 · Hard: Copil M. leads 3–1
Jan Lennard Struff beat Marius Copil 6-4 6-4. Umpiry, "Jan Lennard Struff vs Marius Copil — Madrid Masters Round of 64", https://umpiry.com/match/2018-05-07/copil-vs-struff-madrid-masters-r64?utm_source=cite (as of 7 May 2018).