Szymon Walkow defeated Maciej Smola 2-6 6-3 6-4 in the Poland F11 round of 32 on clay. The upset overturned the form book — Maciej Smola came in leading the head-to-head 1–0. Szymon Walkow claimed a first win over Maciej Smola in two meetings, levelling the head-to-head at 1–1.
Walkow S. came through in three sets.
Clay: Walkow S. leads 1–0 · Hard: Smola M. leads 1–0
Szymon Walkow beat Maciej Smola 2-6 6-3 6-4. Umpiry, "Szymon Walkow vs Maciej Smola — Poland F11 Round of 32", https://umpiry.com/match/2017-08-28/smola-vs-walkow-poland-f11-r32?utm_source=cite (as of 28 August 2017).