Illya Marchenko defeated Ivo Karlovic 6-3 6-7 6-3 in the Washington q32 on hard. The upset overturned the form book — Ivo Karlovic came in leading the head-to-head 3–1. Illya Marchenko narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-02 | Washington | Q1 | hard | Illya Marchenko | 6-3 6-7 6-3 |
| 2018-08-27 | US Open | Q1 | hard | Ivo Karlovic | 6-3 7-6 |
| 2017-01-02 | Doha | R32 | hard | Ivo Karlovic | 7-6 7-6 |
| 2015-07-13 | Newport | R32 | grass | Ivo Karlovic | 7-6 6-7 6-4 |
Averages over each player's completed matches in the selected window (164 vs 10). 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