The Clinton Radars built up a 4-0 lead over Mapleton-Minto through the first period and a half of Game 4 but had to fight off a second period charge to win 7-3.
The sweep ends the "AA" Championship series that saw the top team in the south, Clinton, take on the top team from the north.
Tyler Doig and Kurtis Bartliff provided a one-two punch for the Radars, leading the playoffs in scoring with 33 and 30 points respectively.
In Game 3 of the "A" Championship series, Tillsonburg beat Ripley 2-1 to take a 2-1 series lead. Game 4 is April 1st in Ripley at 8:30pm.