Ajax suffered a heavy home defeat on Saturday, 18 October 2025, losing 0–2 to AZ Alkmaar on Matchday 9 of the Eredivisie season. The match kicked off at 19:00 UTC under the supervision of referee Jeroen Manschot, and the visitors held a commanding 0–2 lead by half-time. The result marked a significant setback for Ajax at the Johan Cruyff Arena, with AZ Alkmaar securing all three points in this historic rivalry fixture.

For Ajax, this defeat at home to a direct rival was a damaging b...