Ajax moved a step closer to reclaiming the Eredivisie title on Sunday with a thumping 4-0 win over FC Twente.
Ajax have returned to the top of the Eredivisie table after winning 2-0 away at Heerenveen.
Ajax slipped up but still moved back to the top of the Eredivisie table with a 2-2 draw at home to FC Utrecht.
Feyenoord tightened their grip on third place and a Europa League qualification spot with a 1-0 win at FC Twente.
Marko van Ginkel scored twice as PSV returned to the top of the Eredivisie table with a 4-2 win at AZ Alkmaar on Saturday.
FC Utrecht continued their pursuit of a top-three Eredivisie finish with a 2-1 victory over Excelsior on Friday.
Ajax failed to take advantage of PSV's Saturday slip-up as they dropped their first points in five Eredivisie games at home to NEC.
Eredivisie leaders PSV Eindhoven recorded a 10th straight league win with a 3-0 victory away at Groningen.
Ajax closed the gap back to one point on Eredivisie leaders PSV Eindhoven with a 4-1 win at home to AZ Alkmaar on Sunday.
Ajax beat Excelsior 3-0 to close the gap at the top of the Eredivisie on Sunday, while Dirk Kuyt was on target for Feyenoord.
PSV Eindhoven ended the weekend top of the Eredivisie after beating Utrecht 2-0 on Sunday.
PSV closed the gap to Ajax at the top with a 4-2 win over Twente, while AZ Alkmaar beat Feyenoord on Sunday in Eredivisie.
Amin Younes gave Eredivisie leaders Ajax a 1-0 win at ADO Den Haag, while PSV won 2-0 at Feyenoord on Sunday.
PSV Eindhoven edged out Zwolle 3-2 to move level on points with Eredivisie leaders Ajax.
Eredivisie leaders Ajax slipped to a 1-0 defeat at Utrecht on Sunday, while Feyenoord were held to a 1-1 draw at Groningen.
Ajax put five past Heerenveen while PSV Eindhoven moved into second place in the Eredivisie with victory at Vitesse.
Utrecht are taking Swansea to the Court of Arbitration for Sport (CAS) over the transfer of Michel Vorm to Tottenham.
Ajax maintained their three-point advantage over Feyenoord with a 1-1 away draw on Sunday, as PSV Eindhoven jumped into second spot.
Feyenoord lost ground in the Eredivisie title race after a shock 1-0 loss against ADO Den Haag.
There were Eredivisie wins for both Ajax and PSV on Saturday, while second-placed Heracles slipped to defeat.