ROUND TWO:
| Ireland v France Aviva Stadium, Dublin Saturday, 11 February, 2023 | Referee: Wayne Barnes (RFU) Assistant Referee 1: Matthew Carley (RFU) Assistant Referee 2: Jordan Way (RA) TMO: Brendon Pickerill (NZR) |
| Scotland v Wales BT Murrayfield, Edinburgh Saturday, 11 February, 2023 | Referee: Andrew Brace (IRFU) Assistant Referee 1: Frank Murphy (IRFU) Assistant Referee 2: Chris Busby (IRFU) TMO: Brian MacNeice (IRFU) |
| England v Italy Twickenham Stadium, London Sunday, 12 February, 2023 | Referee: James Doleman (NZR) Assistant Referee 1: Mathieu Raynal (FFR) Assistant Referee 2: Tual Trainini (FFR) TMO: Eric Gauzins (FFR) |
ROUND THREE:
| Italy v Ireland Stadio Olimpico, Rome Saturday, 25 February, 2023 | Referee: Mike Adamson (SRU) Assistant Referee 1: Wayne Barnes (RFU) Assistant Referee 2: Craig Evans (WRU) TMO: Marius Jonker (SARU) |
| Wales v England Principality Stadium, Cardiff Saturday, 25 February, 2023 | Referee: Mathieu Raynal (FFR) Assistant Referee 1: Andrew Brace (IRFU) Assistant Referee 2: Pierre Brousset (FFR) TMO: Brian MacNeice (IRFU) |
| France v Scotland Stade de France, Paris Sunday, 26 February, 2023 | Referee: Nika Amashukeli (GRU) Assistant Referee 1: Karl Dickson (RFU) Assistant Referee 2: Andrea Piardi (FIR) TMO: Ben Whitehouse (WRU) |
