Jan Hajek defeated Sam Querrey 7-5 7-5 in the Vienna qualifying round of 32 on hard. The upset overturned the form book — Sam Querrey came in leading the head-to-head 1–0. Jan Hajek claimed a first win over Sam Querrey in two meetings, levelling the head-to-head at 1–1.
Hajek J. took it in straight sets.
Hajek J. and Querrey S. faced 1 of the same opponent in the last 12 months. Hajek J. went 0–1 (0%) against them, Querrey S. 1–0 (100%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Hard: Hajek J. leads 1–0 · Clay: Querrey S. leads 1–0
Jan Hajek beat Sam Querrey 7-5 7-5. Umpiry, "Jan Hajek vs Sam Querrey — Vienna Qualifying Round of 32", https://umpiry.com/match/2011-10-22/hajek-vs-querrey-vienna-q32?utm_source=cite (as of 22 October 2011).