After coming up empty on its first three drives, Bradenton Prep scored on seven of its next nine to stay undefeated.
Scooter Smith returned a punt 65 yards for the first touchdown for Bradenton Prep (5-0, 3-0).
Zach Hammond completed touchdown passes of 43 and 33 yards to Michael Curry and Jared William, respectively. William also rushed for 128 yards and scored three more touchdowns, of 5, 38 and 39 yards.
Keswick's main offensive force was Jakobi Wheeler, who carried the ball 17 times for 61 yards.
The Patriots' defense held Keswick (4-4, 3-1) to four first downs and no completions.