AFC Ajax are still five points clear at the top of the Eredivisie after beating De Graafschap 4-0 on Sunday.
Ajax opened the score after half an hour when young South African striker Steven Pienaar converted a Hatem Trabelsi cross. An own goal by Graafschap defender Tim Bakens made it 2-0 at the start of the second half and Mido made it 3-0 in 68th minute, only seconds after coming on for Nikos Machlas.
Wamberto hit his ninth of the season and Ajax's fourth in the dying seconds of the match. Ajax, who have eight matches left to play, top the table with 54 points from 26 games.
Feyenoord joined PSV Eindhoven on 49 points with a game in hand by beating AZ Alkmaar 4-1. Pierre van Hooijdonk found the net twice for Feyenoord, in the 17th and 57th minutes, to bring his total tally this season to 19. Shinji Ono (31 minutes) and Jon Dahl Tomasson (39) were also on target.
Jeroen Ketting scored the consolation goal for the Alkmaar side after Feyenoord relaxed with an eye on their UEFA Cup quarter-final against PSV on Thursday.
Nijmegen on the rise
NEC Nijmegen rose six places to ninth with a 3-0 win against Willem II. Dennis de Nooijer, Steffan Jansson and Danny Hesp were the goalscorers.