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.
There's nothing to suggest the Jayhawks won't end up atop the Big 12 for a 13th season in a row. But what about a return to the Final Four?
Colorado State graduate transfer John Gillon has chosen Syracuse, giving the Orange a potential starter at point guard entering the 2016-17 season.
DeSean Murray, who averaged 20.2 points as a sophomore at Presbyterian, will transfer to Auburn to play for coach Bruce Pearl.