

Alexander Bublik defeated Jannik Sinner 3-6 6-3 6-4 in the Halle round of 16 on grass. The upset overturned the form book — Jannik Sinner came in ranked #1, leading the head-to-head 6–1, defending the title. Alexander Bublik narrowed the head-to-head to 6–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-10-20 | Vienna | QF | hard | Jannik Sinner | 6-4 6-4 |
| 2025-08-25 | US Open | R16 | hard | Jannik Sinner | 6-1 6-1 6-1 |
| 2025-05-26 | Roland Garros | QF | clay | Jannik Sinner | 6-1 7-5 6-0 |
| 2023-06-19 | Halle | QF | grass | Alexander Bublik | 7-5 2-0 RET |
| 2023-06-12 | s Hertogenbosch | R16 | grass | Jannik Sinner | 6-4 6-2 |
| 2021-03-22 | Miami Masters | QF | hard | Jannik Sinner | 7-6(5) 6-4 |
| 2021-03-15 | Dubai | R32 | hard | Jannik Sinner | 2-6 7-6(2) 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
Averages over each player's completed matches in the selected window (91 vs 94). ATP, WTA & Challenger.
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.