Lukas Lacko defeated Ruben Bemelmans 6-2 4-6 7-5 in the St. Petersburg round of 32 on carpet. The result followed the form book — Lukas Lacko came in leading the head-to-head 1–0. Lukas Lacko extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-19 | Halle | Q1 | grass | Lukas Lacko | 6-4 6-3 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.