Kamil Majchrzak defeated Karen Khachanov 2-6 6-7 6-4 7-5 7-6 in the US Open round of 64 on hard. The upset overturned the form book — Karen Khachanov came in ranked #39, leading the head-to-head 4–0, defending last year's round of 128. Kamil Majchrzak claimed a first win over Karen Khachanov in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-06-30 | Wimbledon | R16 | grass | Karen Khachanov | 6-4 6-2 6-3 |
| 2022-06-06 | s Hertogenbosch | R16 | grass | Karen Khachanov | 5-7 7-5 7-6 |
| 2021-05-17 | Lyon | R16 | clay | Karen Khachanov | 7-6 6-3 |
| 2020-09-28 | Roland Garros | R128 | clay | Karen Khachanov | 7-6 6-3 6-3 |
Averages over each player's completed matches in the selected window (77 vs 82). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Majchrzak K.: 6 days rest · 1 match, 23 games (7d) · Khachanov K.: 5 days rest · 1 match, 34 games (7d). 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
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About