

Lukas Klein defeated Matteo Arnaldi 6-4 4-6 6-4 in the Miami Masters qualifying round 1 on hard. The upset overturned the form book — Matteo Arnaldi came in ranked #34, leading the head-to-head 1–0, but Lukas Klein had been the form player, winning 2 of their last 4 on hard. Lukas Klein claimed a first win over Matteo Arnaldi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-01-01 | Brisbane | R16 | hard | Matteo Arnaldi | 6-4 3-6 7-5 |
Averages over each player's completed matches in the selected window (176 vs 194). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Arnaldi M.: 4 days rest · 1 match, 30 games (7d). Higher means fresher. About
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