Panathinaikos beat AEK 3-0 in the Athens derby on Monday to return to the top of the play-off table, along with PAOK that saw off host Panionios 2-0.
The Greens scored their first win against any of the top-five teams in the league this season, and it was a very convincing performance over the recently crowned Cup winners.
Finnish midfielder Robin Lod opened the score for Panathinaikos at the Apostolos Nikolaidis stadium and Marcus Berg made it 2-0 before the half-hour mark, with AEK being tired from playing three games within just over six days. It therefore conceded a third to Viktor Klonaridis in injury time.
PAOK has taken seven points from three games after beating Panionios at Nea Smyrni on Monday.
Stefanos Athanasiadis scored first and Robert Mak added his goal for a rather comfortable victory for the Thessaloniki club. Panionios missed a late penalty and has practically lost all hope of making the top spot that leads to the Champions league qualifiers.
Panathinaikos and PAOK are now on seven points, AEK has five and Panionios one.
On Thursday there are the reverse fixtures as PAOK hosts Panionios and AEK greets Panathinaikos.