Daniel Altmaier defeated Felix Auger Aliassime 7-6 6-3 in the Monte Carlo Masters round of 64 on clay. The upset overturned the form book — Felix Auger Aliassime came in ranked #4, leading the head-to-head 3–1, defending last year's round of 32. Daniel Altmaier narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-05-26 | Roland Garros | R128 | clay | Felix Auger Aliassime | 4-6 6-4 4-6 6-1 7.10-6.7 |
| 2025-10-27 | Paris Masters | R16 | hard | Felix Auger Aliassime | 3-6 6-3 6-2 |
| 2025-05-18 | Hamburg | R32 | clay | Felix Auger Aliassime | 6-3 6-3 |
| 2024-01-08 | Auckland | R16 | hard | Daniel Altmaier | 7-6(9) 7-5 |
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 clay field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (88 vs 97). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Altmaier D.: 12 days rest · 1 match (14d) · Auger Aliassime F.: 6 days rest · 1 match, 57 games (7d). Higher means fresher. About