Ricardo Kishna struck twice as Ajax beat Twente 4-2 in the Eredivisie to cut PSV's Eredivisie lead back to 12 points.
Heerenveen missed the chance to close the gap on the European places in the Eredivisie as they drew with FC Dordecht.
Eredivisie leaders PSV Eindhoven made it six wins in a row as they beat Cambuur 2-1 on Saturday evening.
PSV Eindhoven re-established their four-point lead at the top of the Eredivisie after edging to a 1-0 win at Vitesse.
There were wins for the Eredivisie's leading sides on Saturday night - and plenty of goals along the way.
PSV Eindhoven retained their four-point lead in the Eredivisie despite free-scoring wins for their nearest pursuers.