By James Pearson
Last Updated: 01/01/70 1:00am
The Amsterdam giants could have overtaken rivals PSV Eindhoven had they taken just a point from the clash, but instead remain level on 37 points with a game in hand.
PSV missed out on the chance to pull away from Ajax after being held by Vitesse Arnhem on Saturday, but their inability to claim all thee points went unpunished.
Striker Blaise N'Kufo continued his impressive form with a brace for Twente against the high-flying outfit, his first coming shortly before half time.
N'Kufo, who is currently on loan from Bundesliga side Hannover, added to his first half tally by netting a second on the hour mark, effectively ending the visitors' hopes of a point.
Willem II overcame an opening goal from Sander van Gessel to run out 2-1 winners at Groningen - thanks to a brace from Anour Hadouir.
Feyenoord missed out on the chance to close the gap between them and the leading pack after a goalless draw against RKC at the Mandemakers Stadion.
Utrecht secured their seventh win of the season following a 3-0 defeat of Volendam at the Nieuw Galgewaard.
Patrick Zwaanswijk opened the scoring with Stefaan Tanghe netting from the penalty spot just nine minutes later.
Zwaanswijk netted his second of the contest shortly after, his team's third in 27 minutes, to wrap up the points.
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