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.
Leaders PSV Eindhoven registered their sixth successive Eredivisie victory as they defeated Excelsior to stay clear of Ajax.
Ajax came from behind to beat NAC Breda 3-1 on Sunday and close the gap on Eredivisie leaders PSV Eindhoven back to seven points.
Ajax beat 10-man Feyenoord 2-0 in De Klassieker as PSV scored a last-gasp winner to maintain their five-point lead at the top of the Eredivisie table.
Brighton winger Soufyan Ahannach has joined Eredivisie side Sparta Rotterdam on a loan until the end of the season.
Mason Mount's second-half strike proved enough as Vitesse Arnhem returned to winning ways against Sparta Rotterdam.
Feyenoord romped a record derby win over Sparta Rotterdam, stunning their rivals with a 7-0 away success.
Ajax closed the gap on Eredivisie leaders PSV to just five points with a hard-fought 3-1 win over struggling Excelsior on Thursday.
PSV Eindhoven cemented their place at the top of the Eredivisie table with a hard-fought 1-0 win over Sparta Rotterdam.
Heerenveen ended a run of four successive Eredivisie defeats with a 0-0 draw at Sparta Rotterdam on Friday.
Hirving Lozano and Jurgen Locadia each scored twice as PSV Eindhoven restored their five-point lead at the top of the Eredivisie.
PEC Zwolle moved up to second in the Eredivisie after a 2-0 win at struggling NAC Breda on Saturday.
Feyenoord missed the chance to go level on points with Eredivisie leaders PSV after being held to a goalless home draw by PEC Zwolle.
Yuki Kobayashi fired a second-half winner as Heerenveen climbed top of the Eredivisie table with a 2-1 victory at Willem II.
Sparta Rotterdam 'keeper Roy Kortsmit went from hero to villain and back again as he saved the same penalty twice against AZ Alkmaar.
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