Ivo Karlovic defeated Karen Khachanov 6-7 7-6 6-3 in the Vienna quarter-final on hard. The result followed the form book — Ivo Karlovic came in leading the head-to-head 2–0, defending last year's quarter-final. Ivo Karlovic extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-01-02 | Doha | R16 | hard | Ivo Karlovic | 7-6(3) 7-6(3) |
| 2013-10-14 | Moscow | QF | hard | Ivo Karlovic | 6-4 6-0 |
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
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Khachanov K.: 9 days rest · 3 matches (14d). Higher means fresher. About