Karen Khachanov defeated Felix Auger Aliassime 6-3 1-6 6-3 in the Halle round of 16 on grass. The upset overturned the form book — Felix Auger Aliassime came in ranked #4, leading the head-to-head 3–2, defending last year's round of 32. Karen Khachanov narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-06-16 | Halle | R16 | grass | Karen Khachanov | 6-3 1-6 6-3 |
| 2022-06-10 | s Hertogenbosch | QF | grass | Felix Auger Aliassime | 7-6(5) 6-4 |
| 2022-06-06 | s Hertogenbosch | QF | grass | Felix Auger Aliassime | 7-6 6-4 |
| 2021-08-16 | Cincinnati Masters | R32 | hard | Felix Auger Aliassime | 6-7 6-3 6-4 |
| 2019-08-05 | Canada Masters | R16 | hard | Karen Khachanov | 6-7 7-5 6-3 |
Averages over each player's completed matches in the selected window (72 vs 98). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About