San Marino – Greece
Referee: Jason Barcelo (GIB, photo)
Assistant Referee 1: Andrew Parody (GIB)
Assistant Referee 2: Daniel Gordillo (GIB)
Fourth Official: Patrick Canepa (GIB)
Referee Observer: Georgi Yordanov (BUL)
Czech Republic – Croatia
Referee: Ivaylo Stoyanov (BUL)
Assistant Referee 1: Martin Venev (BUL)
Assistant Referee 2: Dimitar Stoilov (BUL)
Fourth Official: Nikolai Yordanov (BUL)
Referee Observer: Sokol Jareci (ALB)
Azerbaijan – France
Referee: Halis Özkahya (TUR)
Assistant Referee 1: Kerem Ersoy (TUR)
Assistant Referee 2: Serkan Olguncan (TUR)
Fourth Official: Alper Ulusoy (TUR)
Referee Observer: Augustus Constantin (ROU)
Faroe Islands – North Macedonia
Referee: Rohit Saggi (NOR)
Assistant Referee 1: Geir Isaksen (NOR)
Assistant Referee 2: Anders Dale (NOR)
Fourth Official: Sigurd Kringstad (NOR)
Referee Observer: Miroslav Vitković (CRO)
Latvia – Estonia
Referee: Goga Kikacheishvili (GEO)
Assistant Referee 1: Giorgi Elikashvili (GEO)
Assistant Referee 2: David Chigogidze (GEO)
Fourth Official: Aleko Aptsiauri (GEO)
Referee Observer: John Ward (IRL)
Belgium – Germany
Referee: Michael Fabbri (ITA)
Assistant Referee 1: Matteo Passeri (ITA)
Assistant Referee 2: Filippo Valeriani (ITA)
Fourth Official: Marco Piccinini (ITA)
Referee Observer: Ichko Lozev (BUL)
Luxembourg – Armenia
Referee: Juxhin Xhaja (ALB)
Assistant Referee 1: Ilir Tartaraj (ALB)
Assistant Referee 2: Dojando Myftari (ALB)
Fourth Official: Kreshnik Barjamaj (ALB)
Referee Observer: Markus Strömbergsson (SWE)
Liechtenstein – Georgia
Referee: Dragomir Draganov (BUL)
Assistant Referee 1: Georgi Doynov (BUL)
Assistant Referee 2: Petar Mitrev (BUL)
Fourth Official: Stanislav Todorov (BUL)
Referee Observer: Rune Pedersen (NOR)
Lithuania – Scotland
Referee: Juri Frischer (EST)
Assistant Referee 1: Sander Saga (EST)
Assistant Referee 2: Veiko Mõtsnik (EST)
Fourth Official: Kristo Külljastinen (EST)
Referee Observer: Vadims Direktorenko (LVA)
Poland – Russia
Referee: Kevin Clancy (SCO)
Assistant Referee 1: Alan Mulvanny (SCO)
Assistant Referee 2: Sean Carr (SCO)
Fourth Official: David Munro (SCO)
Referee Observer: Konrad Plautz (AUT)
Finland – Ukraine
Referee: Thorvaldur Arnason (ISL)
Assistant Referee 1: Johann Gudmundsson (ISL)
Assistant Referee 2: Gylfi Sigurdsson (ISL)
Fourth Official: Ivar Kristjansson (ISL)
Referee Observer: Christos Nicolaides (CYP)
Northern Ireland – Denmark
Referee: Igor Pajac (CRO)
Assistant Referee 1: Bojan Zobenica (CRO)
Assistant Referee 2: Vedran Djurak (CRO)
Fourth Official: Dario Bel (CRO)
Referee Observer: Brian Lawlor (WAL)
Malta – Romania
Referee: Gergo Bogar (HUN)
Assistant Referee 1: Istvan Albert (HUN)
Assistant Referee 2: Gergo Vigh-Tarsonyi (HUN)
Fourth Official: Csaba Pinter (HUN)
Referee Observer: Vitor Melo Pereira (POR)
Moldova – Bosnia and Herzegovina
Referee: Sebastian Gishamer (AUT)
Assistant Referee 1: Roland Riedel (AUT)
Assistant Referee 2: Santino Schreiner (AUT)
Fourth Official: Stefan Ebner (AUT)
Referee Observer: Albano Janku (ALB)
Sweden – Italy
Referee: Luis Godinho (POR)
Assistant Referee 1: Rui Teixeira (POR)
Assistant Referee 2: Bruno Alves (POR)
Fourth Official: Andre Narciso (POR)
Referee Observer: Lassin Isaksen (FRO)
Portugal – Belarus
Referee: Nicholas Walsh (SCO)
Assistant Referee 1: Calum Spence (SCO)
Assistant Referee 2: Douglas Potter (SCO)
Fourth Official: Gavin Duncan (SCO)
Referee Observer: Adrian Azzopardi (MLT)
Albania – Andorra
Referee: Jasmin Sabotic (LUX)
Assistant Referee 1: Gilles Becker (LUX)
Assistant Referee 2: Joaquim Da Silva (LUX)
Fourth Official: Jeremy Muller (LUX)
Referee Observer: Miroslav Liba (CZE)
Israel – Kazakhstan
Referee: Genc Nuza (KVX)
Assistant Referee 1: Fatlum Berisha (KVX)
Assistant Referee 2: Bujar Selimaj (KVX)
Fourth Official: Burim Jahmurataj (KVX)
Referee Observer: Levan Paniashvili (GEO)
Serbia – Bulgaria
Referee: Espen Eskas (NOR)
Assistant Referee 1: Oystein Ytterland (NOR)
Assistant Referee 2: Isaak Bashevkin (NOR)
Fourth Official: Kristoffer Hagenes (NOR)
Referee Observer: Volodymyr Petrov (UKR)
Netherlands – Norway
Referee: Karim Abed (FRA)
Assistant Referee 1: Cyril Gringore (FRA)
Assistant Referee 2: Philippe Jeanne (FRA)
Fourth Official: Florent Batta (FRA)
Referee Observer: Stefan Messner (AUT)
Slovakia – Switzerland
Referee: Keith Kennedy (NIR)
Assistant Referee 1: Stephen Donaldson (NIR)
Assistant Referee 2: Georgios Argyropoulos (NIR)
Fourth Official: Evan Boyce (NIR)
Referee Observer: Iain Robertson Brines (SCO)
Austria – England
Referee: Fran Jović (CRO)
Assistant Referee 1: Ivica Modrić (CRO)
Assistant Referee 2: Hrvoje Radić (CRO)
Fourth Official: Ivan Vučković (CRO)
Referee Observer: Marian Ružbarsky (SVK)