PSV Eindhoven closed on the Eredivisie leaders with a 3-1 win over ADO Den Haag at Philips Stadion.
PSV Eindhoven remain third after only drawing 0-0 at Willem II on Saturday, while Excelsior, Heracles and Groningen all won.
PSV Eindhoven extended their unbeaten Eredivisie run to six games but were held to a 1-1 draw against FC Twente.
Hakim Ziyech's strike was enough as Ajax edged Excelsior with a 1-0 win to keep the pressure on Eredivisie leaders Feyenoord.
Feyenoord dropped points in the Eredivisie for the first time this season after a 1-1 draw with rivals Ajax.
PSV failed to close the gap on Eredivisie leaders Feyenoord after beinf held to a 1-1 draw by Heerenveen.
Davinson Sanchez and Kasper Dolberg both scored twice as Ajax beat Zwolle 5-1 while PSV won at Excelsior.
Groningen thrashed Utrecht 5-1 on Friday to earn their first win of the season in the Eredivisie.
Feyenoord maintained their perfect start to the season, while there were wins for Ajax and Go Ahead Eagles in the Eredivisie on Sunday.
PSV Eindhoven surrendered their 100 per cent record in disappointing fashion after being held to a 0-0 draw at home to Groningen.
Feyenoord continued their perfect start to the season and returned to the top of the Eredivisie with a 1-0 win at Heracles Almelo.
Ajax were held to a draw by Roda JC in a four-goal thriller on Saturday, while Vitesse lost at home to ADO Den Haag.
Eljero Elia's hat-trick helped Feyenoord win 5-0 at FC Groningen on the opening weekend of the Eredivisie.
Ajax moved a step closer to reclaiming the Eredivisie title on Sunday with a thumping 4-0 win over FC Twente.
PSV Eindhoven returned to the top of the Eredivisie table after a 3-0 success at Roda JC sealed a third straight win.
Feyenoord tightened their grip on third place and a Europa League qualification spot with a 1-0 win at FC Twente.
Ajax regained top spot as they swept aside PEC Zwolle 3-0 on an emotional afternoon at the Amsterdam Arena.
Ajax won 2-0 at PSV Eindhoven to climb above their rivals to the top of the Eredivsie table on Sunday.
Eredivisie leaders PSV Eindhoven were held to a frustrating 1-1 draw by Heerenveen at Philips Stadion on Saturday.
Eredivisie leaders PSV Eindhoven recorded a 10th straight league win with a 3-0 victory away at Groningen.