Stan Wawrinka defeated Karen Khachanov 7-6 7-6 in the St. Petersburg round of 16 on carpet. The upset overturned the form book — Karen Khachanov came in ranked #39, leading the head-to-head 2–1. Stan Wawrinka narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-03-01 | Rotterdam | R32 | hard | Karen Khachanov | 6-4 7-5 |
| 2019-08-05 | Canada Masters | R32 | hard | Karen Khachanov | 6-4 6-7 6-2 |
| 2018-12-31 | Doha | R32 | hard | Stan Wawrinka | 7-6 6-4 |
Averages over each player's completed matches in the selected window (198 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Wawrinka S.: 5 days rest · 2 matches, 45 games (7d) · Khachanov K.: 10 days rest · 1 match (14d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About