12 October 2017Turkey – Paraguay
Referee: Ryuji Sato (JPN, photo)
Assistant Referee 1: Toru Sagara (JPN)
Assistant Referee 2: Hiroshi Yamauchi (JPN)
Fourth Official: Carol Anne Chenard (CAN)
Mali – New Zealand
Referee: Anastasios Sidiropoulos (GRE)
Assistant Referee 1: Polychronis Kostaras (GRE)
Assistant Referee 2: Lazaros Dimitriadis (GRE)
Fourth Official: Claudia Umpierrez (URU)
Ghana – India
Referee: Abdelkader Zitouni (TAH)
Assistant Referee 1: Folio Moeaki (TGA)
Assistant Referee 2: Bernard Mutukera (SOL)
Fourth Official: Enrique Caceres (PAR)
USA – Colombia
Referee: Artur Soares Dias (POR)
Assistant Referee 1: Rui Tavares (POR)
Assistant Referee 2: Paulo Santos (POR)
Fourth Official: Anna-Marie Keighley (NZL)
13 October 2017
Costa Rica – Iran
Referee: Hamada Nampiandraza (MAD)
Assistant Referee 1: Arsenio Marengula (MOZ)
Assistant Referee 2: Yahaya Mohamadou (NIG)
Fourth Official: Mehdi Abid Charef (ALG)
Guinea – Germany
Referee: John Pitti (PAN)
Assistant Referee 1: Gabriel Victoria (PAN)
Assistant Referee 2: Christian Ramirez (HON)
Fourth Official: Nawaf Shukralla (BHR)
Niger – Brazil
Referee: Robert Madden (SCO)
Assistant Referee 1: David McGeachie (SCO)
Assistant Referee 2: Alastair Mather (SCO)
Fourth Official: Kateryna Monzul (UKR)
Spain – Korea DPR
Referee: Jose Argote (VEN)
Assistant Referee 1: Luis Murillo (VEN)
Assistant Referee 2: Carlos Lopez (VEN)
Fourth Official: Gladys Lengwe (ZAM)