Norbert Gombos defeated Evgeny Donskoy 2-6 6-2 6-3 in the Portoroz CH quarter-final on hard. The upset overturned the form book — Evgeny Donskoy came in defending last year's semi-final.
Gombos N. came through in three sets.
Norbert Gombos beat Evgeny Donskoy 2-6 6-2 6-3. Umpiry, "Norbert Gombos vs Evgeny Donskoy — Portoroz CH Quarter-final", https://umpiry.com/match/2015-08-10/donskoy-vs-gombos-portoroz-ch-qf?utm_source=cite (as of 10 August 2015).