Ivo Karlovic defeated Illya Marchenko 6-3 7-6 in the Us Open qualifying round 1 on hard. The result followed the form book — Ivo Karlovic came in leading the head-to-head 3–1. Ivo Karlovic extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-02 | Washington | Q1 | hard | Illya Marchenko | 6-3 6-7(10) 6-3 |
| 2018-08-27 | US Open | Q1 | hard | Ivo Karlovic | 6-3 7-6(7) |
| 2017-01-02 | Doha | R32 | hard | Ivo Karlovic | 7-6(5) 7-6(0) |
| 2015-07-13 | Newport | R32 | grass | Ivo Karlovic | 7-6(4) 6-7(6) 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (118 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About