By Tom Adams
Last Updated: 01/01/70 1:00am
Ajax's dismal season continued whilst Feyenoord scored seven and PSV also won.Ajax lost further pace on the leaders in De Eredivisie after losing to Utrecht, as AZ Alkmaar and PSV Eindhoven won and Feyenoord put seven past Heracles Almelo.
Leaders PSV maintained their slender one-point lead after a 3-0 home win against ADO Den Haag.
Angular striker Jan Vennegoor of Hesselink put Guus Hiddink's side into a commanding lead with strikes on 60 and 73, and Arouna Kone wrapped matters up in the dying minutes after the visitors had Daniel Rijaard dismissed for two bookable offences.
However, the performance of the day came from second placed Feyenoord as they asserted their title aspirations with a 7-1 annihilation of Heracles Almelo.
Erwin Koeman's side went into the break three goals to the good after strikes from Ali Boussaboun (9), Serginho Greene (19) and Salomon Kalou (35).
Moroccan striker Boussaboun then added another just before the hour and Dutch international Dirk Kuyt grabbed a quick-fire brace (78, 83).
Heracles had the temerity to grab a consolation through Rudy Jansen (87), but the home side restored their six-goal advantage through Jonathan de Guzman deep into injury time.
Third placed AZ Alkmaar matched their rivals as they claimed a 2-0 home win over Roda JC Kerkrade.
Dutch international Denny Landzaat (34) opened the scoring for Louis van Gaal's men, and Danny Koevermans wrapped up the scoring with a minute left of normal time.
De Eredivisie's bottom side RBC Roosendaal suffered further disappointment as they lost 2-0 to European chasing Heerenveen.
Roosendaal remain rock bottom with just three points from 13 games, and were put to the sword by strikes from Arnold Bruggink (38) and Hjalte Norregaard.
Ajax's dismal start to the season continued as they lost 1-0 away to Utrecht.
The Amsterdam outfit have now lost five times in 13 games after their latest set-back.
Danny Blind's side may have progressed to the UEFA Champions League knock-out stage but their aspirations of domestic success were dealt a heavy blow as Utrecht took the lead just before the hour mark.
Dutch youth international Dwight Tiendalli (pictured) was the goalscorer for the home side, who moved into sixth place with the three points and condemned Ajax to ninth.