Lauchlin Elder scored and set up another as the Walkerton Hawks doubled Hanover 6-3 to lead their Pollock Division semi final series 3-0.
Josh Hopkin, Blair Jenkins, Robert Stonelake, Braden Boley and Connor Patton also scored for the Hawks.
Kallen Macumber stopped 16 shots for the win. Hanover Braeden Ellis made 23 saves in the loss.
Matt Shields, Jordan Reaman and Cole Leslie scored for the Barons.
The Barons face elimination when they host the Hawks on Friday night.