Cowboys guard Jawun Evans scored 16 points on 7 of 17 shooting.
The Terps and Cavaliers last met in 2014.
The Terps host Hofstra and The Mount this weekend.
Melo Trimble propelled the Terps with 31 points.
Melo Trimble led all scorers with 22 points.
The Terps expect to contend for a third consecutive NCAA tournament spot.
Referees will be able to use instant replay to review some blocking and charging calls.
The subpoenas regard an unnamed former player, Maryland assistant coach Bino Ranson and former recruiting target Silvio De Sousa, who attends Kansas.
The Terps now have the top-ranked class in the Big Ten.
Dixon spent the past three seasons as a special assistant to Mark Turgeon.