Tallon Griekspoor defeated Felix Auger Aliassime 6-4 6-4 in the Mallorca semi-final on grass. The upset overturned the form book — Felix Auger Aliassime came in ranked #4, leading the head-to-head 3–0. Tallon Griekspoor claimed a first win over Felix Auger Aliassime in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-02-09 | Rotterdam | QF | hard | Felix Auger Aliassime | 7-6(2) 6-2 |
| 2022-06-06 | s Hertogenbosch | R16 | grass | Felix Auger Aliassime | 7-6(2) 7-6(5) |
| 2018-08-27 | US Open | Q1 | hard | Felix Auger Aliassime | 7-5 6-3 |
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 (75 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.
Griekspoor T.: 13 days rest · 1 match (14d) · Auger Aliassime F.: 6 days rest · 1 match, 57 games (7d). Higher means fresher. About