Peter Heller defeated Pascal Brunner 6-1 6-3 in the Czech Republic F9 round of 16 on hard. The upset overturned the form book — Pascal Brunner came in leading the head-to-head 1–0. Peter Heller claimed a first win over Pascal Brunner in two meetings, levelling the head-to-head at 1–1.
Heller P. took it in straight sets.
Hard: Heller P. leads 1–0 · Clay: Brunner P. leads 1–0
Peter Heller beat Pascal Brunner 6-1 6-3. Umpiry, "Peter Heller vs Pascal Brunner — Czech Republic F9 Round of 16", https://umpiry.com/match/2017-11-06/brunner-vs-heller-czech-republic-f9-r16?utm_source=cite (as of 6 November 2017).