Khyri Thomas added 16 points and Ty-Shon Alexander had 12 for the Bluejays (4-0), who have won 12 straight in-season tournament games after titles at the MGM Grand Main Event and the Paradise Jam.
Creighton raced to an early lead, weathered the Bruins’ best effort midway through the second half, and then proved it could put things away with poise and precision down the stretch.
The Bluejays will play No. 25 Baylor or Wisconsin for the title Tuesday night, giving the freshman Ballock another big game close to home. He starred in high school in Eudora, Kansas.