Feyenoord’s John Guidetti put arch-rivals Ajax to the sword with a hat-trick in a 4-2 Eredivisie win at De Kuip on Sunday.
The on-loan Manchester City forward struck twice in the first half, including a penalty to put Feyenoord 2-1 up at half-time.
Otman Bakkal extended the hosts’ lead to 3-1 five minutes after the break with a fine finish from the edge of the area.
Dmitri Bulykin pounced on goalkeeper Erwin Mulder’s indecision to give Ajax a glimmer of hope on 80 minutes.
But Swede Guidetti was on hand to complete his hat-trick three minutes later when he was played in by Ruben Schaken.
It was the 19-year-old’s 12th goal in 11 league games this season
The results leaves the two sides level on 34 points after 19 matches, with Feyenoord six, two places behind their rivals on goal difference, with Heerenveen separating them.
FC Twente moved back up to second place thanks to a Luke de Jong hat-trick, as they swept aside FC Groningen 4-1.
De Jong netted twice in the first half and once in the second to take his tally to 15 goals in 14 league games, while Virgil van Dijk pulled one back for Groningen in the 47th minute.
Leroy Fer rounded out the scoring for Twente in the 67th minute.
RKC Waalwijk hammered VVV Venlo 4-0 with two late goals adding gloss to a dominant display at the Mandemakers Stadion.
Evander Sno scored the opener while Frank Van Mosselveld scored the second. Robert Braber and Rick ten Voorde added goals in the 80th and 90th minutes to complete the rout.
Lasse Schone bagged a brace in NEC Nijmegen’s 2-0 win over ADO Den Haag with a 17th-minute penalty after scoring the opener on eight minutes.