Dawid Olejniczak defeated Maciej Dilaj 6-3 6-3 in the Poland F2 semi-final on clay. The upset overturned the form book — Maciej Dilaj came in leading the head-to-head 1–0. Dawid Olejniczak claimed a first win over Maciej Dilaj in two meetings, levelling the head-to-head at 1–1.
Olejniczak D. took it in straight sets.
Dawid Olejniczak beat Maciej Dilaj 6-3 6-3. Umpiry, "Dawid Olejniczak vs Maciej Dilaj — Poland F2 Semi-final", https://umpiry.com/match/2007-05-21/dilaj-vs-olejniczak-poland-f2-sf?utm_source=cite (as of 21 May 2007).