Zierden was 4 of 7 from the floor - all 3-point attempts - to go along with terrific foul shooting. Devin Brooks added 12 points and the Bluejays were 22 of 25 (88 percent) from the line as a team, which made up for shooting just 35 percent from the floor.
Creighton (4-0) led by just five at the half, 27-22, after both teams struggled offensively. But Toby Hegner's jumper and 3-point play by Artino Will pushed the lead to double digits 5 minutes into the second half.
An 11-3 run, including Zierden's trey, stretched Creighton's advantage to 16 with 4:26 left.