The Zips (4-2) broke a 52-all tie midway through the second half as Reggie McAdams drained two 3-pointers.
Oral Roberts (5-6) cut the deficit to two after a Shawn Glover dunk, but Akron surged away from there with a 14-4 run capped off by a dunk from Nick Harney to grab their largest lead, 73-61 with 1:04 remaining.
Akron shot 43.9 percent from the field and hit six 3-pointers to the Golden Eagles' one. Diggs was 8 of 10 from the line and had seven rebounds. Harney was the third Zips player in double figures with 11 points.
Oral Roberts had a similar shooting percentage of 42.6 percent, but committed 20 turnovers. Glover finished with 21 points and Korey Billbury added 14 with seven boards.
The family of former Houston Astros owner Roy Hofheinz wants a court to require the University of Houston to keep his name on the school's basketball arena.
Michigan has hired assistant basketball coaches Billy Donlon and Saddi Washington.
Duke and Cincinnati, 2016 NCAA tournament teams, highlight the eight-team field for the Naismith Memorial Basketball Hall of Fame Tip-Off Tournament.