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Ajax were crowned Eredivisie champions for the third successive season after thrashing Willem II 5-0.
First-half goals from Kolbeinn Sigthorsson and Christian Eriksen set Ajax on their way and Viktor Fischer, Siem De Jong and Danny Hoesen wrapped up the victory.
The triumph leaves Ajax four points clear of nearest challengers PSV Eindhoven with one round of matches remaining.
PSV beat NEC Nijmegen 4-2 but it was not enough to deny their rivals.
Happy big 4-0 to Dutch master Marc 'Roadrunner' Overmars, who graced the flanks at Highbury for a good three years before quitting north London to play for Barcelona. Overmars is currently Director of Football at Ajax.
Many happy returns to Holland legend Edgar Davids, who turns the big 4-0 today.