The Calgary Flames and Edmonton Oilers are fighting the Battle of Alberta in the playoffs for the sixth time in the rivalry's history.
Here's a brief look back at the five previous encounters between the two:
1983: OILERS WON 4-1
In the first meeting between the two sides in the playoffs, the Oilers began a trend of dominance against Calgary, taking the series in five games.
Wayne Gretzky finished with 14 points (six goals, eight assists) in the series as Edmonton took the Smythe Division final with ease.
The series was among the least competitively played of the five encounters between the two in the post-season, with Edmonton outscoring Calgary 35-13.
However, it did begin the trend of the Oilers, more often than not, getting the better of the Flames in playoff play.
1984: OILERS WON 4-3
Case in point: Just a year after getting bounced by the Oilers in the Smyth Division final, the Flames got eliminated again.
This was a far more competitive series, going the full seven games and featuring two overtime contests — both Calgary win.
Ultimately, though, the star power the Oilers boasted — in particular, Gretzky and Jari Kurri — proved too much for Calgary to overcome.
The seven-game victory helped propel the Oilers to their first Stanley Cup championship.
1986: FLAMES WON 4-3
Another seven-game series, two years after the first one.
Taking place again in the Smyth Division final, Calgary finally got the better of Edmonton.
The series was decided by a goal scored a little over five minutes into the third period that broke a 2-2 tie in Game 7.
Oilers defenceman Steve Smith attempted a cross-ice pass but it ended up striking Flames goalie Grant Fuhr's leg and trickled into Edmonton's goal.
This series win still remains the only time the Flames have defeated the Oilers in the post-season.
It also helped catapult Calgary to its first Stanley Cup final appearance, where it fell to the Montreal Canadiens in five games.
1988: OILERS WON 4-0
The most dominant Oilers victory of the four they've earned, Edmonton swept Calgary and, outside of an overtime win in Game 2, had no issues handling the Flames.
Edmonton dominated despite not having home-ice advantage for the first time in their playoff series with each other.
1991: OILERS WON 4-3
The only series outside of the one happening now that didn't see the two teams meet in the Smyth Division final, this one took place in the Smyth Division semifinal and, for the second encounter in a row, saw the Flames with home-ice advantage.
Unfortunately for Calgary, even with Gretzky no longer around in Edmonton, it was the Oilers coming out on top, this time breaking the hearts of Southern Alberta again as Esa Tikkanen scored 6:58 into overtime of Game 7.
This report by The Canadian Press was first published May 20, 2022.
The Canadian Press