Dayton (4-0) maximized its chances on Georgia Tech's 19 miscues to outscore the Yellow Jackets 33-6 on turnovers.
Sibert, a junior transfer from Ohio State, began his career at Dayton with a buzzer-beating 3 that gave the Flyers a victory over Indiana-Purdue Fort Wayne in the opener.
Over the last seven seasons, the Flyers have won 20 of their last 39 games against major conferences. Beating Georgia Tech gave Dayton, which plays in the Atlantic 10, five straight wins over Atlantic Coast Conference opponents.
Mike Brey is looking at former Notre Dame players to fill two assistant jobs that have opened up with the departures of Martin Ingelsby and Anthony Solomon.
Purdue's 2016-17 prospects got a jolt Wednesday when forward Caleb Swanigan announced he will return for his sophomore season.
Clemson's Jaron Blossomgame says he is withdrawing from the NBA draft and returning to school for a final season.