Rittich, a 2016 free agent find from the Czech Republic, knows he doesn't need to do anything different in goal when his role, or the stage, gets bigger.
He kept it competitive over the summer while training with, and competing against, San Jose Sharks prospect Josef Korenar, a fellow Czech, taking part in battle drills and results-based games on the ice, and tennis off it.
"Did a lot of things different in the summer," Rittich said. "It was a game summer, so for the mental side if you are losing some games you want to keep going, keep playing. I was a guy who was always [upset] if I was losing, and I worked on it and it's here and it's great.
"If something happens I can move on. I am the guy who can think about it just for the day that it happened, and then new day and new time to make you better, and you are going on the ice and you don't want to be upset or mad [at] yourself, you want to work hard and get better."
Goaltending coach Jordan Sigalet can see the difference in the locker room, where Rittich's goofy grin and affable attitude made him an instant hit upon his arrival in Calgary.
"When Mike was hurt last season, you could see his body language was different, he wasn't as loose as he usually was," Sigalet said of Rittich. "When he's loose and being himself, that's when he's at his best. He almost became too serious and you could even see it in his eyes, sitting in his stall, that he was too intense. That works for some guys, but it doesn't work for him."
Adjusting quickly hasn't been a problem for Rittich, who was playing in the second-tier professional league in the Czech Republic four seasons ago. He arrived at his first Flames training camp two seasons ago barely able to speak English, though he tried to do it anyway. He never hesitated to playfully give it back to teammates who chirped him for messing up words or conversations, all while taking English lessons and watching TV with subtitles to try to improve.