Quentin Halys defeated Gilles Muller 6-4 6-4 in the Los Cabos round of 32 on hard. The upset overturned the form book — Gilles Muller came in leading the head-to-head 1–0. Quentin Halys claimed a first win over Gilles Muller in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-07-24 | Atlanta | R16 | hard | Gilles Muller | 6-4 6-7(1) 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 (200 vs 29). ATP, WTA & Challenger.