5 February 2018 Serbia – Kazakhstan First Referee: Kamil Çetin (TUR, photo) Second Referee: Marc Birkett (ENG) Third Referee: Vladimir Kadykov (RUS) Timekeeper: Vasilios Christodoulis (GRE)
Slovenia – Russia First Referee: Eduardo Fernandes (POR) Second Referee: Bogdan Sorescu (ROU) Third Referee: Juan Cordero Gallardo (ESP) Timekeeper: Josip Barton (MKD)
6 February 2018 Portugal – Azerbaijan First Referee: Ondřej Černý (CZE) Second Referee: Saša Tomić (CRO) Third Referee: Kamil Çetin (TUR) Timekeeper: Vasilios Christodoulis (GRE)
Ukraine – Spain First Referee: Alessandro Malfer (ITA) Second Referee: Angelo Galante (ITA) Third Referee: Eduardo Fernandes (POR) Timekeeper: Josip Barton (MKD)
5 February 2018