Nicolas Petan had a hat trick as the Portland Winterhawks downed the Kelowna Rockets 5-1 on Wednesday to tighten their grip on the Western Hockey League playoff series.

The win gives Portland a 3-1 lead in the WHL's Western Conference final.

Oliver Bjorkstrand and Paul Bittner also scored for the Winterhawks, while Corbin Boes made 31 saves. Bittner's goal was into an empty net.

Nick Merkley was the lone scorer for Kelowna, while Jordon Cooke stopped 31-of-35 shots.

Portland was 3 for 8 on the power play, while the Rockets went 0 for 5.

Oil Kings 4, Tigers 1

Brett Pollock scored twice, including the winner, as Edmonton topped the Tigers.

The Oil Kings now lead the WHL's Eastern Conference final 3-1.

Captain Griffin Reinhart and Riley Kieser also scored for Edmonton, as Tristan Jarry made 22 saves.

Cole Sanford had the only goal for Medicine Hat and Marek Langhamer stopped 26 shots.

The Oil Kings scored on one of their two power plays, while the Tigers went 1 for 6 with the man advantage.

Mooseheads 5, Foreurs 4

Jonathan Drouin scored twice and had three assists as the Halifax Mooseheads edged the Val-d'Or Foreurs 5-4.

Halifax's win ties their QMJHL semifinal at 2-2.

Philippe Gadoury had a goal and two assists for Halifax, while Andrew Ryan and Nikolaj Ehlers also scored. Kevin Darveau made 31 saves for the win.

Anthony Richard, Samuel Henley, Anthony Mantha and Jeremie Fraser replied for Val-d'Or. Antoine Bibeau stopped 33-of-38 shots in net for the Foreurs.

Armada 4, Drakkar 2

Philippe Sanche and Samuel Tremblay scored 1:51 apart as the Blainville-Boisbriand Armada sank the Baie-Comeau Drakkar to tie their series 2-2.

Marcus Hinds and Nikita Jevpalovs also had goals for the Armada, while Etienne Marcoux made 28 saves.

Alexandre Ranger and Denis Gorbunov responded for Baie-Comeau. Philippe Cadorette turned aside 18-of-22 shots.