It was a game the Winnipeg Blue Bombers will surely want to forget quickly, as they missed a game-winning field goal as the Argonauts stole the game, 29-28.
The Bombers held a 25-20 lead going into the fourth quarter, but they couldn't hold it.
Matt Nichols threw for 268 yards on 25 completions, 129 of which were to Weston Dressler who had a monster game coming back from injury.
With the win, the Argonauts improved their chances of winning the East Division, while the loss meant the Stampeders clinched top spot in the West.
The Bombers are on home field next week as they take on the Lions.