The Musketeers (9-6, 2-0) were without point guard Dee Davis, who injured his left wrist in Xavier's previous game with Temple. Redford and Christon picked up the slack in the backcourt, with Redford hitting 7 of 8 3-pointers and Christon adding seven assists. Jeff Robinson scored 14 points while Travis Taylor pulled down 11 rebounds with six points and six assists.
Lasan Kromah was George Washington's lone player in double figures with 12 points. The Colonials (7-8, 1-1) made just 38.6 percent (22 of 57) of their shots and were outrebounded 33-28.
Xavier shot 57.1 percent (28 of 49) from the field and made 8 of 10 3-pointers.
The Musketeers jumped to a 9-2 lead and slowly grew the advantage to 35-20 at halftime.
Mike Krzyzewski says he has good reason to be excited for next season thanks to a combination of Duke's incoming freshmen and a core of experienced upperclassmen.
Georgia guard Juwan Parker has been awarded a medical redshirt, leaving him with two years of eligibility, after missing the 2015-16 season with a partially torn Achilles tendon.
Forward Trevon Bluiett has withdrawn from consideration from the NBA draft and will return to Xavier for his junior season.