Panathinaikos extended their winning start to the season with a 2-1 victory over Aris at the Olympic Stadium on Sunday.
The visitors opened the scoring through Brazilian defender Guiaro Ronaldo in the 36th minute but a Sebastian Abreu own goal three minutes before the break allowed Panathinaikos to turn around all square.
The second half proved extremely tight before Costas Katsouranis broke the deadline and grabbed the three points with the winner seven minutes from time.
Panathinaikos now have a maximum 12 points from their opening four games.
AEK Athens, meanwhile, suffered a setback when they were held to a 1-1 draw by PAS Yiannina.
Loan signing from Liverpool, Krisztián Németh, put AEK ahead in the 52nd minute and appeared to be heading for victory when Patrick Dimbala picked up two yellow cards in the space of a minute, laving Yiannina to negotiate the final ten minutes a man down.
But within a minute of the dismissal, Vaggelis Kontogoulidis found the target and Yiannina held on the for a valuable point.
Olympiakos left it late to take all three points at the Toumba, a last minute goal giving new coach Zico his first win in charge.
Vierinha gave PAOK the lead in the tenth minute before Diogo levelled things with his first goal of the season four minutes before half-time.
A draw was on the cards as the game went into added time but central defender Avraam Papadopoulos outmuscled the PAOK defence to secure a 2-1 win.
Olympiakos now have seven points like AEK – and these two meet in their rearranged first round match on Wednesday.
Xanthi picked up their first win of the season as they poured more misery on Panthrakikos who are still looking for their first point.
Xanthi went ahead on the stroke of half-time through Zdeno Strba and were later reduced to ten men when Athanasios Kostoulas was sent off 12 minutes from time. They held on, however, for a trademark 1-0 victory.
Ergotelis, meanwhile, showed that their fighting spirit remains firmly intact as they fought back from a two-goal deficit to share the points with Levadiakos.
Two goals from Giorgos Barkoglou in the 18th minute and then just before the hour seemed to put Levadiakos firmly on track for their second successive win
That appeared even more certain Ergotelis’ Georgian defender Georgi Shashiashvili was sent off for a second yellow card with half an hour still on the clock.
But back they came thanks to the Mario brothers. Danish defender Mario Hieblinger got the first in the 69th minute qnd six minutes later Croatian striker Mario Budimir bagged the second, the game finishing 2-2.
Asteras Tripolis enjoyed stunning 3-1 win over Panionios in Nea Smyrni on Saturday.
Daniel Cesarek put the visitors ahead after just five minutes but it was a double strike from Eder just before the interval that made the game safe.
The 22-year-old Brazilian nabbed his first in the 39th minute and three minutes later fired home his second.
Panionios, who have still to clock up a win this season, rallied in the second half, pulling back a goal from Souleiman Akim Omolade in the 69th minute.
But Asteras had done enough to maintain their unbeaten run.
Iraklis and Kavala also notched their second wins of the season, both sides moving up to seven points.
Iraklis appeared to be heading for a draw at home to Larissa after the first half ended in stalemate at 0-0. But three goals in the space of six minutes in the second half changed all that.
First Denis Epstein put Iraklis ahead in the 65th minute. Five minutes later Shimon Abuhatzira leveled at 1-1 but within a minute Iraklis were ahead again thanks to Constantin Victoras Iacob.
Kavala followed up last week’s 0-0 draw at Olympiakos with another impressive display – a 2-1 home win over Atromitos which suggests they may be serious about their drive to stay in the Super League.
Benjamin Onwuachi put Kavala ahead in the 45th minute but there was still time for Lucas Gabriel Favalli to equalise before the half-time whistle sounded.
Nikos Soultanidis restored Kavala’s lead in the 56th minute and they held on for their second win of the season.
Defeat leaves newly-promoted Atromitos in serious trouble with just one point from their four games.