Bester sprinted 59 yards for a touchdown and had a 1-yard plunge for another score while Gabbert connected with Andrew Homer for a 35-yard score and Jalen Walker for a 60-yarder during a 27-point second quarter that left the RedHawks up 37-3 at halftime.
Mike Brown gave Miami a quick lead with a 79-yard interception return within the first two minutes of the game.
The victory (6-4, 5-1) was the fourth in a row for the RedHawks and strengthened their grip on first place in the Mid-American Conference East Division lead with two games remaining.
Sources: Vanderbilt Commodores hiring Baltimore Ravens coach Jesse Minter as defensive coordinator
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College football's way-too-early 2021 All-America team
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Jon Arnett, star RB for USC Trojans and Los Angeles Rams, dies at 85
Jon Arnett, one of USC's greatest running backs who went on to become a five-time Pro Bowl player for the Los Angeles Rams, died on Saturday at age 85.
Chris Olave, Tyreke Smith returning to Ohio State Buckeyes instead of heading to NFL draft
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Source: Purdue hiring Marshall's Brad Lambert as co-defensive coordinator
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McConaughey feels hopeful for Sarkisian and Texas
Actor Matthew McConaughey expresses his thoughts on Steve Sarkisian becoming the next head coach of Texas Longhorns football.