Cole Linaker scored once and added an assist, and Tyson Baillie netted the game winner midway through the third period as the Rockets downed the Tri-City Americans 5-3 Tuesday night in WHL playoff action in Kennewick, Wash.
The win gave the Rockets a 3-0 lead in the best-of-seven first round Western Conference quarterfinal series.
The Rockets held Tri-City to 1-for-9 on the power play while scoring two power play goals and outshooting the Americans 25-22.
Jackson Whistle earned his third straight win. Whistle saw his personal shutout streak snapped at 154:14 when Tri-City scored its first goal of the series, in the second period.
Riley Stadel and Tomas Soustal staked Kelowna to a 2-0 lead while Chance Braid added an insurance marker in the third. Dillon Dube and Lucas Johansen each had a pair of assists.
The Rockets and Americans will play Game 4 on Wednesday night in Tri-City.
If necessary, Game 5 would be Friday night in Kelowna.