Alexandre Muller defeated Quentin Halys 3-6 6-3 6-4 in the Metz qualifying round 1 on hard. The upset overturned the form book — Quentin Halys came in ranked #90. Alexandre Muller extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-09-20 | Metz | Q1 | hard | Alexandre Muller | 3-6 6-3 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 200). ATP, WTA & Challenger.