Ajax winger Anwar El Ghazi scored his seventh goal of the season to send his side back to the top of the Eredivisie table with a 2-0 win at Excelsior.
Polish striker Arkadiusz Milik grabbed the second just before the break as Ajax regained the lead in the title race from Heracles.
AZ Alkmaar’s stuttering start to the season continued when they went down 2-0 at FC Groningen.
Bryan Linssen opened the scoring in the 31st minute and Mimoun Mahi wrapped it up for the hosts in stoppage time.
Feyenoord earned a point on the road at Roda to stay in fourth. They had taken the lead through Michiel Kramer in the 20th minute but Hicham Faik pulled the hosts level seven minutes later and the score remained 1-1.
De Graafschap’s problems intensified after going down 3-0 at Vitesse Arnhem – the visitors have yet to get a single point this season.
Guram Kashia, Valeri Kazaishvili and Milot Rashica got the goals for Vitesse, who are now in seventh spot in the table.
On Saturday, Heracles came from behind to defeat PSV Eindhoven 2-1 and move temporarily to the top of the Eredivisie table.
PSV, fresh from defeating Manchester United in their Champions League opener on Tuesday evening, could have reached the summit themselves with victory and they began in fine fashion, Luuk de Jong beating goalkeeper Bram Castro to Maxime Lestienne’s free-kick to head home inside the opening 90 seconds.
However, the hosts rallied to record their fifth straight victory in the league.
Captain Mark-Jan Fledderus levelled with five first-half minutes remaining after bending a brilliant left-footed try over keeper Jeroen Zoet before Thomas Bruns curled an equally impressive first-time finish home on the stroke of half-time.
PEC Zwolle claimed a 2-1 success over ADO Den Haag.
Like Heracles, they had to it from a losing position as Mike Havenaar broke the deadlock with his third goal in five games since joining from HJK Helsinki.
Sheraldo Becker equalised with 20 minutes to go with an effort that appeared to be intended as a cross from the right flank and 10 minutes later Nottingham Forest loanee Lars Veldwijk grabbed the winner with his sixth goal in four games.
Willem II tasted victory for the first time this term by defeating 10-man FC Utrecht 3-1.
The home side had not scored since the opening day of the season but Erik Falkenburg, who was on target in a 1-1 draw with Vitesse Arnhem that day, set them on their way in the 27th minute.
Utrecht lost Sebastian Haller to a red card just before the break and though Nacer Barazite pulled them level, Louis Nganioni’s own goal restored the hosts’ lead and Robbie Haemhouts made it 3-1.
Elsewhere, strugglers Cambuur Leeuwarden and FC Twente are both still winless following a goalless draw.
On Friday night, Christian Santos scored twice as NEC continued their climb up the table with a 2-0 win over Heerenveen in Nijmegen.
The Venezuelan international struck in the 17th and 74th minutes as the hosts rose to 10th on the back of their third game without loss.
But defeat was another setback for Heereveen who have now gone five games without a win since their opening-night victory over De Graafschap.