Lukas Lacko defeated Ivo Karlovic 7-6 7-6 in the Halle qualifying round of 16 on grass. The upset overturned the form book — Ivo Karlovic came in leading the head-to-head 2–1, defending last year's round of 32. That levelled the head-to-head at 2–2.
Lacko L. took it in straight sets.
Lacko L. and Karlovic I. faced 2 of the same opponents in the last 12 months. Lacko L. went 1–1 (50%) against them, Karlovic I. 1–1 (50%).
Only 2 common opponents — too few for any conclusion. Shown without assessment.
Grass: Lacko L. leads 2–1 · Hard: Karlovic I. leads 1–0
Lukas Lacko beat Ivo Karlovic 7-6(5) 7-6(2). Umpiry, "Lukas Lacko vs Ivo Karlovic — Halle Qualifying Round of 16", https://umpiry.com/match/2018-06-16/karlovic-vs-lacko-halle-q16?utm_source=cite (as of 16 June 2018).