

Quentin Halys defeated Benjamin Bonzi 6-4 6-3 in the Lille CH quarter-final on hard. The upset overturned the form book — Benjamin Bonzi came in ranked #93. Quentin Halys extended the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-01-12 | Adelaide | Q1 | hard | Quentin Halys | 6-3 6-4 |
| 2025-06-16 | Halle | R32 | grass | Quentin Halys | 6-4 6-4 |
| 2024-11-04 | Metz | QF | hard | Benjamin Bonzi | 6-3 7-6(1) |
| 2023-08-28 | US Open | R128 | hard | Benjamin Bonzi | 5-7 6-4 6-4 6-4 |
| 2021-01-10 | Doha Aus Open Qualies | Q1 | hard | Quentin Halys | 6-0 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 (200 vs 200). ATP, WTA & Challenger.