Ajax kept up the pressure on leaders Feyenoord in the race for the Eredivisie title by thrashing Heerenveen.
Steven Berghuis' double salvaged a point for Feyenoord as the Eredivisie leaders were held to a 2-2 at PEC Zwolle on Sunday.
PSV Eindhoven moved up to second place in the Eredivisie after a 2-0 win at Sparta Rotterdam.
PSV Eindhoven beat Vitesse 1-0 to close the gap on second-placed Ajax to a point and move five behind leaders Feyenoord.
ADO Den Haag boosted their hopes of survival in the Eredivisie with a 1-0 home victory against NEC on Saturday.
Mathias Pogba struck the game's only goal as Sparta Rotterdam became the first team this year to beat Feyenoord in the Eredivisie.