Panathinaikos are 10-0 in the Greek Basket League after a 75-57 success at Koroivos in the final round of games before Christmas.
James Feldeine led Panathinaikos with a game-high 25 points, which included three triples in the easy win.
Bitter rivals Olympiacos are still in second spot but were made to work hard for their 75-73 win at Nea Kifisia. Georgios Printezis paced the Piraeus side with 13 points as they make it eight wins in a row.
Third placed Aris were comfortable 82-50 victors at second from bottom Apollon Petras.
Aris took control from the start and never looked back as Okaro White led the winners with 22 points and seven rebounds.
In a bid to rise up the table, PAOK went to seventh as they scored a 78-62 win at Lavrio and AEK Athens consolidated fourth spot with an 86-70 home win over AGOR.
Elsewhere around the Greek Basket League, Kolossos were 85-72 winners against bottom side Kavala and Trikalla eased past Arkadikos 82-54.
