
Daniel Altmaier defeated Jannik Sinner 6-7 7-6 1-6 7-6 7-5 in the Roland Garros round of 64 on clay. The upset overturned the form book — Jannik Sinner came in ranked #1, leading the head-to-head 3–0, defending last year's round of 16. Daniel Altmaier claimed a first win over Jannik Sinner in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-10-20 | Vienna | R32 | hard | Jannik Sinner | 6-0 6-2 |
| 2025-10-01 | Shanghai Masters | R64 | hard | Jannik Sinner | 6-3 6-3 |
| 2022-08-29 | US Open | R128 | hard | Jannik Sinner | 5-7 6-2 6-1 3-6 6-1 |
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 (200 vs 200). 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) · Sinner J.: 1 day rest · 3 matches, 109 games (7d). Higher means fresher. About