Windsor now leads London 31 in OHL Western Conference quarterfinal series
Graham Knott scored his second goal of the game in overtime to lift the Windsor Spitfires over the London Knights 3-2.
The win gives the Spits a 3-1 lead in their OHL Western Conference quarterfinal.
Gabe Vilardi scored Windsor's other goal, and Jeremy Bracco had two assists.
Michael DiPietro made 31 saves for the Spitfires.
Game 5 in the series goes Friday in London.
AM800's coverage begins with the pre-game show at 7:05pm.