WEEK FOUR:
| Uruguay v Namibia OL Stadium, Lyon Wednesday, 27 September, 2023 | Referee: Mathieu Raynal (FFR) Assistant Referee 1: Nic Berry (RA) Assistant Referee 2: Chris Busby (IRFU) TMO: Ben Whitehouse (WRU) |
| Japan v Samoa Stadium de Toulouse, Toulouse Thursday, 28 September, 2023 | Referee: Jaco Peyper (SARU) Assistant Referee 1: Ben O’Keeffe (NZR) Assistant Referee 2: Craig Evans (WRU) TMO: Marius Jonker (SARU) |
| New Zealand v Italy OL Stadium, Lyon Friday, 29 September, 2023 | Referee: Matthew Carley (RFU) Assistant Referee 1: Nic Berry (RA) Assistant Referee 2: Christophe Ridley (RFU) TMO: Brett Cronan (RA) |
| Argentina v Chile Stade de la Beaujoire, Nantes Saturday, 30 September, 2023 | Referee: Paul Williams (NZR) Assistant Referee 1: Angus Gardner (RA) Assistant Referee 2: James Doleman (NZR) TMO: Ben Whitehouse (WRU) |
| Fiji v Georgia Stade de Bordeaux, Bordeaux Saturday, 30 September, 2023 | Referee: Karl Dickson (RFU) Assistant Referee 1: Jaco Peyper (SARU) Assistant Referee 2: Pierre Brousset (FFR) TMO: Tom Foley (RFU) |
| Scotland v Romania Stade Pierre-Mauroy, Lille Saturday, 30 September, 2023 | Referee: Wayne Barnes (RFU) Assistant Referee 1: Andrew Brace (IRFU) Assistant Referee 2: Chris Busby (IRFU) TMO: Brendon Pickerill (NZR) |
| Australia v Portugal Stade Geoffroy-Guichard, Saint-Étienne Sunday, 1 October, 2023 | Referee: Nika Amashukeli (GRU) Assistant Referee 1: Mathieu Raynal (FFR) Assistant Referee 2: Andrea Piardi (FIR) TMO: Joy Neville (IRFU) |
| South Africa v Tonga Stade de Marseille, Marseille Sunday, 1 October, 2023 | Referee: Luke Pearce (RFU) Assistant Referee 1: Matthew Carley (RFU) Assistant Referee 2: Christophe Ridley (RFU) TMO: Brett Cronan (RA) |