Ivo Karlovic defeated Yuichi Sugita 6-3 7-6 in the Us Open qualifying final on hard. The result followed the form book — Ivo Karlovic came in leading the head-to-head 1–0. Ivo Karlovic extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-01-15 | Australian Open | R64 | hard | Ivo Karlovic | 7-6(3) 6-7(3) 7-5 4-6 12-10 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.