Kent State (16-13, 7-9 Mid-American) used a 17-0 run to open a 20-8 lead and maintained a double-digit advantage for most of the remainder of the game.
The Golden Flashes shot 48.9 percent from the field, including 9 of 14 from long range with Manley hitting 5 of 6 to lead Kent State. The Golden Flashes also made 22 of 25 free throws, led by Kellon Thomas who was 9 of 10.
Kris Brewer added 12 points and eight assists for Kent State.
Travis Wilkins scored 14 points to lead Ohio (19-10, 9-7).
Kent State avenged a 59-53 loss at home to the Bobcats and improved to 11-52 all-time at Ohio. The win in Athens was the first for Kent State since 2011.
Guard Naz Mitrou-Long, whose 2015-16 season ended in December due to hip problems, has been granted a hardship waiver for the coming season, Iowa State said.
As the Sooners look to life without superstar Buddy Hield and his sidekicks, it's clear their unseasoned players will need to grow up fast.
The Central Intercollegiate Athletic Association says it won't move its headquarters, its basketball tournament or other conference championships from North Carolina, despite