David Poljak defeated Robin Stanek 6-3 6-4 in the M15 Opava 1 semi-final on carpet. The upset overturned the form book — Robin Stanek came in leading the head-to-head 2–1. That levelled the head-to-head at 2–2.
Poljak D. took it in straight sets.
Carpet: Stanek R. leads 2–1 · Clay: Poljak D. leads 1–0
David Poljak beat Robin Stanek 6-3 6-4. Umpiry, "David Poljak vs Robin Stanek — M15 Opava 1 Semi-final", https://umpiry.com/match/2019-11-02/poljak-vs-stanek-m15-opava-1-sf?utm_source=cite (as of 2 November 2019).