Deane also had six rebounds and two steals as Dayton (16-1, 4-0 Atlantic 10) raced out to a 44-26 lead at the half and never looked back. Ally Malott, Samantha MacKay and Cassie Sant scored 17, 13, and 12 points, respectively, in the win.
The game was played on a weekday morning in celebration of Math Day. A total of 6,723 fans attended at UD Arena.
Tara Booker had 10 points and nine rebounds for the Colonials (7-11, 1-3). Shi-Heria Shipp also scored 10 for George Washington.
Dayton forced 22 turnovers, as the Flyers continued their best start in school history.