I think an unexpected surprise from SHL history was the first reverse sweep in the cup finals in S27 by the Calgary Dragons over the Hamilton Steelhawks. Many current members may not have been around for that but it was a historic event in the league as it had never happened before. Going into the S27 Challenge Cup Finals Calgary had not won a cup since S9 and had a 17 season cup drought. They played well in the first 3 games of the finals but quickly found themselves down 0-3 to the Steelhawks. Young GM Esa Anrikkanen did some line tweaking and they came back to win 3 games in a row and force game 7! Game 7 of the cup finals would live up to the hype going to overtime when Calgary rookie Michael Burch scored the game 7 overtime winner for the Dragons to complete the epic comeback and first ever reverse sweep in SHL history! One of the more exciting Challenge Cup Finals in league history, for everyone except Hamilton. Either way a historic event and anytime a reverse sweep happens it's a big surprise. There's only ever been one other reverse sweep in the cup finals since, again completed by Calgary, this time in S50 against Tampa Bay, so they hold a pretty cool distinction there.