Gilles Muller defeated Alexander Zverev 6-2 3-6 6-4 in the Irving CH quarter-final on hard. Gilles Muller extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-04-16 | Monte Carlo Masters | R32 | clay | Alexander Zverev | 4-6 6-3 6-2 |
| 2017-06-12 | s Hertogenbosch | SF | grass | Gilles Muller | 7-6(5) 6-2 |
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 (197 vs 199). ATP, WTA & Challenger.