Marko Pantelic scored four times as Olympiacos won 4-0 at Kerkyra to move to within a point of
The Serb opened the scoring in the tenth minute and completed his hat-trick before the half-hour mark. The 33-year-old then got a fourth in the 63rd minute as the visitors sealed a comprehensive victory.
Panathinaikos are a point further back in third after coming from behind to win 2-1 at Panionios. Andre Schembri put the hosts in front in the eighth minute, but Sebastian Leto levelled with a 62nd-minute penalty and Kostas Katsouranis completed the comeback 16 minutes from time.
Asteras Tripoli were 1-0 winners at home to Aris Salonika thanks to Fernando Usero's goal in the 31st minute.
Nikos Katsikokeris scored a second-half winner to earn Ergotelis a 2-1 success at home to basement boys Doxa Dramas. Petros Kanakoudis had brought the visitors level a minute before the break, cancelling out Michalis Fragoulakis' opener.
Panetolikos beat OFI Crete 1-0 with William Edjenguele on target.