Nino Serdarusic defeated Duje Kekez 6-3 6-2 in the Croatia F18 qualifying round on clay. The upset overturned the form book — Duje Kekez came in leading the head-to-head 1–0. Nino Serdarusic claimed a first win over Duje Kekez in two meetings, levelling the head-to-head at 1–1.
Serdarusic N. took it in straight sets.
Nino Serdarusic beat Duje Kekez 6-3 6-2. Umpiry, "Nino Serdarusic vs Duje Kekez — Croatia F18 Qualifying Round", https://umpiry.com/match/2015-09-28/kekez-vs-serdarusic-croatia-f18-qf?utm_source=cite (as of 28 September 2015).