Adrian Menendez Maceiras defeated Miljan Zekic 6-3 6-3 in the Portoroz CH round of 16 on hard. The upset overturned the form book — Miljan Zekic came in leading the head-to-head 1–0. Adrian Menendez Maceiras claimed a first win over Miljan Zekic in two meetings, levelling the head-to-head at 1–1.
Menendez Maceiras A. took it in straight sets.
Hard: Menendez Maceiras A. leads 1–0 · Clay: Zekic M. leads 1–0
Adrian Menendez Maceiras beat Miljan Zekic 6-3 6-3. Umpiry, "Adrian Menendez Maceiras vs Miljan Zekic — Portoroz CH Round of 16", https://umpiry.com/match/2016-08-08/maceiras-vs-zekic-portoroz-ch-r16?utm_source=cite (as of 8 August 2016).