What is PDO in hockey?

Add a team’s shooting percentage to its save percentage at 5-on-5 and you get a number that averages about 1.000. For a player, it uses his team’s numbers while he’s on the ice. Well above 1.000 means pucks are going in at one end and staying out at the other more than usual. That rarely lasts, so a team far above it often cools off and one far below often picks up. It’s partly skill, though: elite finishers and goalies can stay above it for a long time.