Ajax consolidated their position at the top of the Eredivisie table with a convincing win over strugglers De Graafschap.
Derk Boerrigter scored either side of Christian Eriksen's strike as the hosts took a dominant lead, with Michael de Leeuw's score on the stroke of half-time scant consolation for the visitors.
The result moves the Amsterdam-based club six points clear of AZ Alkmaar and Feyenoord, who are tied for second place with 58 points.
Ajax dominated the first half and Boerrigter laid an early marker when he fired home in the third minute.
Siem de Jong passed the ball to the waiting Boerrigter in the box, where the striker blasted it past De Graafschap goalkeeper Yves De Winter.
From that point, De Graafschap were under pressure as Ajax controlled the game and kept the majority of possession.
De Jong almost scored the home side's second in the 26th minute when his long range shot just skimmed the left post.
The visitors then had their first chance when Soufian El Hassnaoui raced upfield and crossed the ball to Rydell Poepon, who fired over the bar.
However, it was the home side who scored again in the 37th minute when Eriksen received the ball from Ismail Aissati and drilled it into the left corner.
Ajax then made it three as Boerrigter turned in Jan Vertonghen's cross to claim his second.
It was not the last action of the half, as De Leeuw pulled one back for the visitors in the last minute of the half when he headed Poepon's cross past Ajax keeper Kenneth Vermeer.
After the break, Ajax again dominated possession, but three goals proved to be enough as they played out the second half without creating any more real goalscoring opportunities.