The Buckeyes were a unanimous selection with 59 first-place votes.
TCU finished third behind runner-up Oregon. The Horned Frogs were not selected to participate in the College Football Playoff.
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Alabama finished fourth with Michigan State and Florida State tied for fifth.
Six SEC teams finished in the Top 25.
The final AP Top 25:
Ohio State (59)
Oregon
TCU
Alabama
T-5. Michigan State
T-5. Florida State
Baylor
Georgia Tech
Georgia
UCLA
Mississippi State
Arizona State
Wisconsin
Missouri
Clemson
Boise State
Ole Miss
Kansas State
Arizona
USC
Utah
Auburn
Marshall
Louisville
Memphis
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