Malik Byrd knocked down the game-winning shot with seven seconds left to play as Decatur topped Class 7A Bob Jones on Monday.
Byrd finished with 12 points and six rebounds for the Red Raiders, who trailed the Patriots 21-19 at the half.
Shawn Hullett led Decatur (5-2) with 13 points, while Ty Russell and Kobe Johnson added nine points each.