Arthur De Greef defeated Marcin Gawron 6-2 6-1 in the Poland F4 qualifying round on clay. The upset overturned the form book — Marcin Gawron came in leading the head-to-head 1–0. Arthur De Greef claimed a first win over Marcin Gawron in two meetings, levelling the head-to-head at 1–1.
De Greef A. took it in straight sets.
Arthur De Greef beat Marcin Gawron 6-2 6-1. Umpiry, "Arthur De Greef vs Marcin Gawron — Poland F4 Qualifying Round", https://umpiry.com/match/2012-08-13/gawron-vs-greef-poland-f4-qf?utm_source=cite (as of 13 August 2012).