Klimchuk's mom, Michelle, and dad, Kade, were on hand to offer support.
On Family Day, no less.
"I didn't really know I was going to play until the last minute,'' sighed Klimchuk. "I was prepared to play but you don't know.
"I found out pretty late. So it's tough.
"My sister's playing in a volleyball tournament out of town, at the Alberta Winter Games.
"So today is a pretty special moment for her, too."
For the Monday matinee at the Scotiabank Saddledome, he slotted in on the fourth line alongside Matt Stajan and Curtis Lazar.
"Once the game goes on, you touch the puck a bit, you get hit a bit it feels better,'' said Klimchuk. "Little things like that honestly make a difference.
"You settle in and you find ways to contribute.
"As a line, we wanted to be solid, create energy and play in their end. If you're playing in their end you're creating momentum for your team and that's what we tried to do right from puck-drop.
"The team had a bit of a slow start but as we got going everybody kind of stepped it up."
The step up in class obviously takes some getting used to.
"There are definitely parts that are different. I had to make adjustments. Whenever you jump up a level you find situations where you've going to have time and space.
"In the O-zone they close on you quick. They're hard to play against. Hey, it's the National Hockey League.
"But you get the puck, make a pass and it feels pretty good out there. You can skate with guys, finish your checks, and you feel you can contribute. I do right now.
"There were some situations where I felt pretty comfortable and other ones I'd obviously like to work on. But all in all, I know I can play here and I just have to show that on a consistent basis."