Lukas Lacko defeated Yannick Maden 6-4 6-3 in the US Open qualifying round of 128 on hard. The result followed the form book — Lukas Lacko came in leading the head-to-head 1–0, defending last year's round of 128. Lukas Lacko extended the head-to-head to 2–0.
Lacko L. took it in straight sets.
Lukas Lacko beat Yannick Maden 6-4 6-3. Umpiry, "Lukas Lacko vs Yannick Maden — US Open Qualifying Round of 128", https://umpiry.com/match/2019-08-19/lacko-vs-maden-us-open-q128?utm_source=cite (as of 19 August 2019).