Yoshihito Nishioka defeated Karen Khachanov 7-6 7-6 in the Washington round of 16 on hard. The upset overturned the form book — Karen Khachanov came in ranked #26, leading the head-to-head 5–1. Yoshihito Nishioka narrowed the head-to-head to 5–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-09-20 | Zhuhai | F | hard | Karen Khachanov | 7-6 6-1 |
| 2023-01-22 | Australian Open | R16 | hard | Karen Khachanov | 6-0 6-0 7-6(4) |
| 2023-01-16 | Australian Open | R16 | hard | Karen Khachanov | 6-0 6-0 7-6 |
| 2022-08-01 | Washington | R16 | hard | Yoshihito Nishioka | 7-6 7-6 |
| 2021-07-24 | Tokyo Olympics | R64 | hard | Karen Khachanov | 3-6 6-1 6-2 |
| 2019-01-14 | Australian Open | R64 | hard | Karen Khachanov | 6-3 6-3 6-3 |
Averages over each player's completed matches in the selected window (176 vs 200). 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
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About