Blankenship scored from two yards out the put the Bobcats (2-1) up 31-17 early in the fourth.
The Thundering Herd (2-1) came right back as Rakeem Cato threw a 38-yard touchdown to Gator Hoskins, then forced Ohio to punt on the ensuing drive, but Cato was intercepted by Devin Bass on the next play.
Following a field goal by Ohio, Cato rushed for a touchdown to cut the deficit to three, but the following onside kick was recovered by the Bobcats to seal the game.
Tettleton was 25-for-38 with a touchdown and Matt Waters had 83 yards on six receptions.
Cato finished 30 of 44 for 367 yards for Marshall.
Tommy Shuler caught 9 passes for 95 yards receiving while Hoskins had 81.
Cary Chow and Adam Rittenberg discuss four marquee games on a weekend ripe with College Football Playoff implications.
No. 2 Alabama is a decided favorite at Auburn. Adam Rittenberg previews the Iron Bowl.
No. 3 Oklahoma travels to No. 11 Oklahoma State in a game which could end the Big 12 title race. Adam Rittenberg previews one of the biggest Bedlam games ever.
The winner of No. 6 Notre Dame at No. 9 Stanford needs one of several things to go its way to reach to College Football Playoff. Adam Rittenberg breaks down Saturday's showdown in Palo Alto.
On Nov. 27, 2010, Oklahoma State's Brodrick Brown gave new meaning to the tip drill when he leaped out of bounds to deflect the ball back into play, where LB Shaun Lewis completed the improbable interception.
From the Mets making the World Series to Michigan State defeating Michigan, the First Take Thanksgiving crew share the sports moments that they are most thankful for this year.