Jonas Hiller made 23 saves and Alex Grant scored his second career goal on his second NHL shot as the Pacific Division-leading Ducks improved to 12-0-2 at home, extending the second-longest streak without a regulation loss to open a season in the shootout era.
Josh Harding stopped 29 shots and Jason Pominville scored his 15th goal early in the third period for the Wild, who have lost four straight on the road.
Perry extended the longest goal streak in the league this season with a second-period goal, jumping on a loose puck for his 21st.
That was something I've been dreaming of, something I've told myself before the third period I was going to do ... It was an amazing feeling. It's hard to describe. I didn't believe it went in at first but when I saw all the reaction and all the fans going crazy and my teammates going crazy, it's just an unbelievable feeling. I didn't know what to do. I didn't know whether to jump or just skate and do a Theo Fleury. I don't think I'm the same caliber player he is so I couldn't do it.
— Flames forward Mikael Backlund on scoring the overtime winner against the Ducks in Gm. 3