Mitchell Theoret scored twice and added an assist as the Barrie Colts dropped the Kingston Frontenacs 4-2 on Monday in Ontario Hockey League playoff action.
Barrie now leads the best-of-seven series 3-0, with Game 4 in Kingston, Ont., on Wednesday.
Andreas Athanasiou and Winnipeg Jets prospect Mark Scheifele also scored for the Colts, while Mathias Niederberger made 23 saves for the win.
Mikko Vainonen and Ryan Kujawinski replied for Kingston. Goaltender Mike Morrison stopped 26-of-29 shots for the Frontenacs.
Theoret scored the first and last goals of the game. His first came 1:21 into the first period and then he put the puck into an empty net with less than a minute to play in the third.
Barrie couldn't score on its seven power plays, while Kingston went 1 for 7 with the man advantage.
Elsewhere in the OHL it was: Owen Sound at Sault Ste. Marie and Plymouth at Sarnia.
Greyhounds 5 Attack 3
(Owen Sound leads series 2-1)
At Sault Ste. Marie, Ont., a third-period goal by defenceman Darnell Nurse gave the Greyhounds the win over Owen Sound.
Game 4 is on Wednesday in Sault Ste. Marie.
Whalers 5 Sting 2
(Plymouth leads series 3-0)
At Sarnia, Ont., Ryan Hartman scored twice as the Whalers beat the Sting 5-2.
Sarnia hosts Game 4 on Wednesday in the best-of-seven series.