David Jorda Sanchis defeated Szymon Walkow 6-3 4-6 6-4 in the Poland F7 qualifying round on clay. The upset overturned the form book — Szymon Walkow came in leading the head-to-head 1–0. David Jorda Sanchis claimed a first win over Szymon Walkow in two meetings, levelling the head-to-head at 1–1.
Jorda Sanchis D. came through in three sets.
Clay: Jorda Sanchis D. leads 1–0 · Hard: Walkow S. leads 1–0
David Jorda Sanchis beat Szymon Walkow 6-3 4-6 6-4. Umpiry, "David Jorda Sanchis vs Szymon Walkow — Poland F7 Qualifying Round", https://umpiry.com/match/2017-07-24/sanchis-vs-walkow-poland-f7-qf?utm_source=cite (as of 24 July 2017).