Zegras was one of the driving forces in getting players to the first game. He has watched the list grow each season while the message of checking in on friends is spread across the hockey community, and specifically the NHL.
"I feel like each year it's just getting bigger and bigger," Zegras said, "and something that means a lot to me because I get to see a lot of my buddies throughout the years, and they all come and support. I think the message is good because it's something as hockey players and athletes we can all kind of relate to and get behind, and that would be checking in on each other.
"You never know what somebody's going through on a day-to-day basis, and maybe your phone call or your text is the reason why maybe they turn the corner for whatever reason. It's a pretty inspiring game, and I'm lucky that I got a lot of buddies that come and play in it."
The event Thursday will feature the game, see the players mingle with fans, and other surprises.
Gary Zegras, Trevor's father, was an administrator and coach with the Mid Fairfield Hockey Association when the Thorsen tragedy occurred. He jumped in to help and serves on the board of the foundation. He has watched the growth since the earliest days of the foundation's vision and admits it is amazing.
More amazing, he says, is that the message has grown even more than its signature event.
"This is to honor the way Hayden lived his life in that he was someone that was always looking out for his friends and his family, always checking in," Gary said. "He was the kind of guy that would always put his arm around your shoulder.
"Literally that is the basis for what has come the Shoulder Check initiative, which is literally to spread the word of this kindness about being there for your friends and family because you never know what people are going through."
To donate and support the Shoulder Check year-round, click here.
NHL.com deputy managing editor Adam Kimelman contributed to this report