Adam Kellner defeated Jurgen Zopp 6-2 6-4 in the Czech Rep F3 qualifying round on clay. The upset overturned the form book — Jurgen Zopp came in leading the head-to-head 2–0. Adam Kellner claimed a first win over Jurgen Zopp in three meetings, narrowing the head-to-head to 2–1.
Kellner A. took it in straight sets.
Clay: level 1–1 · Hard: Zopp J. leads 1–0
Adam Kellner beat Jurgen Zopp 6-2 6-4. Umpiry, "Adam Kellner vs Jurgen Zopp — Czech Rep F3 Qualifying Round", https://umpiry.com/match/2009-05-18/kellner-vs-zopp-czech-rep-f3-qf?utm_source=cite (as of 18 May 2009).