Alexander Zverev defeated Horacio Zeballos 6-1 6-4 in the US Open qualifying round of 128 on hard. The result followed the form book — Alexander Zverev came in leading the head-to-head 2–1. Alexander Zverev extended the head-to-head to 3–1.
Zverev A. took it in straight sets.
Hard: Zverev A. leads 1–0 · Clay: Zverev A. leads 2–1
Alexander Zverev beat Horacio Zeballos 6-1 6-4. Umpiry, "Alexander Zverev vs Horacio Zeballos — US Open Qualifying Round of 128", https://umpiry.com/match/2015-08-26/zeballos-vs-zverev-us-open-q128?utm_source=cite (as of 26 August 2015).