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.
Wout Weghorst recovered from a double penalty miss to shoot AZ Alkmaar joint top of the Eredivisie with a 2-0 win at Sparta Rotterdam.
Heerenveen secured a surprise 2-0 home win over 10-man PSV Eindhoven on Sunday.
Ajax suffered an opening-day defeat in the Eredivisie after losing 2-1 at Heracles.
Jurgen Locadia did Eredivisie leaders Feyenoord a favour by firing PSV Eindhoven to a 1-0 win over the Rotterdammers' title rivals Ajax.
PSV missed out on the chance to close the gap at the top of the Eredivisie after they were held to a 1-1 draw at ADO Den Haag.
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.
Mathias Pogba struck the game's only goal as Sparta Rotterdam became the first team this year to beat Feyenoord in the Eredivisie.
Utrecht came from two goals down to win 3-2 at Groningen to record a fourth win in the last five Eredivisie matches.
Eredivisie leaders Feyenoord extended their unbeaten league run to 11 games with a 1-0 win over ADO Den Haag on Sunday.
Ajax kept up the pressure on Eredivisie leaders Feyenoord with a 2-0 victory against Sparta Rotterdam on Sunday.
Feyenoord won 2-0 at Twente on Sunday to maintain their five-point Eredivisie lead, as Ajax, PEC Zwolle and Utrecht also recorded victories.
Feyenoord extended their advantage at the top of the Eredivisie after beating Willem II 1-0 on Saturday.
PSV Eindhoven moved level on points with second-placed Ajax as they beat Excelsior 2-0 at Philips Stadion.
Nicolai Jorgensen netted a brace as Eredivisie leaders Feyenoord thrashed city rivals Sparta Rotterdam 6-1 at De Kuip.
PSV Eindhoven remain third after only drawing 0-0 at Willem II on Saturday, while Excelsior, Heracles and Groningen all won.
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