Brooks Macek scored at 6:59 of overtime Sunday to give the Calgary Hitmen a 4-3 win over the Edmonton Oil Kings in Western Hockey League playoff action.
Macek's second goal of the night sent the best-of-seven Eastern Conference final to a deciding Game 7 in Edmonton on Tuesday.
The winner advances to meet the Portland Winterhawks in the WHL final beginning Friday in Portland, Ore.
Macek beat Laurent Brossoit with a wrist shot high to the glove side from the left faceoff circle.
"We're no strangers to OT in these playoffs, you know it was just like another overtime game and we just needed to be strong defensively, and the chance came along and Macek made no mistake," said Hitmen goaltender Chris Driedger.
Spencer Humphries and Brady Brassart also scored for Calgary.
Macek and Brassart scored power-play goals as the Hitmen came back from a 2-1 deficit after two periods. Macek got the equalizer at 7:23.
Ashton Sautner, Curtis Lazar and Stephane Legault scored for Edmonton.
Chris Driedger made 36 saves for Calgary. Brossoit had 30 stops.
Calgary was 2-for-4 on the power play while Edmonton was 0-for-5.
The Winterhawks clinched the Western Conference title with a 4-1 series win over the Kamloops Blazers, wrapping up the series with a 4-1 home-ice victory on Saturday.