Aris claimed an 84-78 Basketball Champions League victory over Banvit to move clear of their opponents in second in Group A on Wednesday.
Both sides came into the clash unbeaten in their opening three matches, but Vlantimir Giankovits' star performance inspired the hosts to the win.
The power forward racked up 19 points and 10 rebounds in a match that saw Aris claw their way back from a 24-15 deficit at the end of the first quarter.
Aris are level on points with AS Monaco at the summit, with the men from the principality having triumphed 71-64 over Ironi Nahariya.
Neptunas Klaipeda maintained their winning run to continue setting the pace in Group C, edging a 64-63 victory at EWE Baskets courtesy of a fourth-quarter fightback.
The Lithuanian outfit trailed 50-43 heading into the final period but remain clear of second-placed Ventspils - 91-66 victors over Openjobmetis Varese.
Iberostar Tenerife suffered their first defeat of the season in overtime against SIG Strasbourg, losing 70-66 in Group D, which also saw Cibona beat KK Mornar 90-72.
Group E table toppers Besiktas Sompo Japan made it four wins from four with their 85-66 win against Stelmet Zielona Gora, and Partizan went third thanks to a 70-55 victory at Szolnoki Olaj.
There were also wins for MHP RIESEN Ludwigsburg (96-78) and Umana Reyer Venezia (73-61) against Proximus Spirou and Maccabi Rand Media respectively.