Clarke, the reigning Atlantic 10 Conference player of the week, was 6 of 8 from the field, including 5 of 6 on 3-pointers. Marshall made seven of his 12 shots as the Bulldogs (4-2) shot 59 percent from the floor.
The Bulldogs opened the game on a 15-2 run, capped by a Clarke 3-pointer, and were never seriously threatened. Butler was 9 of 18 on 3-pointers and dominated the glass, outrebounding Hanover 42-22.
Butler improved to 13-2 against Hanover, which has not beaten the Bulldogs since the 1909-10 season.
Sparkling facilities are one thing, but Tim Miles needs to regain the momentum of Nebraska's 2014 run to the NCAAs if it is to play with the big boys.
Oregon finished on top of the Pac-12 last season and made a run to the Elite Eight. With loads of talent returning, will the Ducks continue their reign?
Purdue coach Matt Painter says players haven't used the fifth-year graduate transfer rule for its true intent.