Ajax celebrated their 118th birthday in memorable fashion with a 5-2 thrashing of Sparta Rotterdam.
Eredivisie leaders PSV Eindhoven suffered a shock 5-0 defeat to struggling Willem II.
Ajax's hopes of winning the Eredivisie title suffered another setback as they were beaten 3-2 at Vitesse Arnhem on Sunday.
AZ Alkmaar kept the pressure on second-placed Ajax by coming from behind to beat the Eredivisie's bottom club Sparta Rotterdam 2-1.
Ajax closed the gap on Eredivisie leaders PSV Eindhoven to five points with a 1-0 win at PEC Zwolle on Sunday.
Steven Bergwijn scored twice as leaders PSV Eindhoven extended their lead to 10 points in a 2-1 comeback victory over bottom side Sparta Rotterdam.
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