Dexia Mons Hainaut rolled to a 91-65 victory over Galatasaray Café Crown to leave all four teams with 1-1 records in EuroChallenge Group H.
KK Zagreb beat Khimik Yuzhny earlier on Tuesday in the group.
Chris Finch's Dexia hit the Turkish outfit with a 10-0 to start the game and the visitors never got off the canvas.
By the end of the first quarter, Dexia were on top 25-11 and at half-time the advantage had ballooned to 42-21.
Galatasaray never threatened Dexia, the team that lost a heartbreaker in the final of last season's EuroCup to Barons.
Julian Sensley scored 17 points and hauled in nine rebounds for Dexia, who were galvanized by a home crowd of 3,150 fans.
Four others reached double figures in points for Dexia, while Erdem Turetken scored 14 for Galatasaray.