Ajax dropped two points in their effort to close the gap on leaders PSV Eindhoven as they were held to a goalless draw by Utrecht.
PSV were the recipients of a staggering refereeing decision in their 4-0 win over Willem II in the Eredivisie on Saturday.
Steven Berghuis scored a first-half double as Feyenoord moved three points clear at the top of the Eredivisie with a 4-2 victory at Heracles.
Feyenoord moved top of the Eredivisie with a 5-0 thumping over Willem II on Sunday afternoon.
PSV Eindhoven impress with victory at NAC Breda, while Ajax get back to winning ways against Groningen in the Eredivisie.
Ajax kept up the pressure on leaders Feyenoord in the race for the Eredivisie title by thrashing Heerenveen.
Steven Berghuis' double salvaged a point for Feyenoord as the Eredivisie leaders were held to a 2-2 at PEC Zwolle on Sunday.
Jens Toornstra scored a hat-trick as Eredivisie leaders Feyenoord thrashed struggling Go Ahead Eagles 8-0.
PSV Eindhoven moved up to second place in the Eredivisie after a 2-0 win at Sparta Rotterdam.
PSV Eindhoven beat Vitesse 1-0 to close the gap on second-placed Ajax to a point and move five behind leaders Feyenoord.
Feyenoord maintained their four-point lead at the top of the Eredivisie table with a comfortable 5-2 win over AZ Alkmaar.
PSV Eindhoven bounced back from the defeat by Eredivisie leaders Feyenoord to sweep past Roda JC 4-0 at Philips Stadion.
Utrecht came from two goals down to win 3-2 at Groningen to record a fourth win in the last five Eredivisie matches.
Eredivisie leaders Feyenoord extended their unbeaten league run to 11 games with a 1-0 win over ADO Den Haag on Sunday.
Feyenoord won their eighth Eredivisie game in a row as they beat FC Groningen 2-0 on Saturday to extend their lead at the top to eight points.
Title-chasing PSV Eindhoven triumphed 4-2 at AZ Alkmaar on Saturday, while Go Ahead Eagles and Heracles also won.
Feyenoord extended their advantage at the top of the Eredivisie after beating Willem II 1-0 on Saturday.
Feyenoord consolidated their lead at the top of the Eredivisie with a 2-0 win away to struggling Roda, while Ajax beat Zwolle.
Fran Sol's double earned Willem II a 2-1 win at home to fourth-placed Heerenveen in the Eredivisie on Friday night.
Nicolai Jorgensen netted a brace as Eredivisie leaders Feyenoord thrashed city rivals Sparta Rotterdam 6-1 at De Kuip.