Rogerio Dutra Silva defeated Filip Krajinovic 6-4 6-3 in the Prague CH quarter-final on clay. The upset overturned the form book — Filip Krajinovic came in leading the head-to-head 1–0. Rogerio Dutra Silva claimed a first win over Filip Krajinovic in two meetings, levelling the head-to-head at 1–1.
Dutra Silva R. took it in straight sets.
Rogerio Dutra Silva beat Filip Krajinovic 6-4 6-3. Umpiry, "Rogerio Dutra Silva vs Filip Krajinovic — Prague CH Quarter-final", https://umpiry.com/match/2015-08-10/krajinovic-vs-silva-prague-ch-qf?utm_source=cite (as of 10 August 2015).