All games will be aired on NBC, NBCSN, CNBC, USA Network and NHL Network, as well as Sportsnet and TVA Sports.
The grand prize winner will receive a trip for two to the 2018 NHL Awards in Las Vegas. See NHL.com/Bracket for official rules and prize information.
NBC's Willie Geist was the winner of the celebrity league last season.
Gunnar Noebel, a 20-year-old Pittsburgh Penguins fans from Highlands Ranch, Colorado, won the grand prize last year by correctly predicting every team to advance throughout the playoffs, including the Penguins defeating the Nashville Predators in six games in the Stanley Cup Final.
"I had to read the email a couple of times to make sure. I was like, 'This can't be right,'" Noebel said. "It completely shocked me. It was an awesome feeling to realize you won and would be able to have an opportunity to go to the NHL Expansion Draft, where Vegas was being built in front of me. It was pretty special.
"I tried to look at the season the teams had and thought about how they did against each other in the playoff round, and based on my better judgment I picked the amount of the games and who would win the series. It took the best of my ability and judgment. I watched a lot of hockey over the new year, tried to watch as many teams as I can and I just went with my personal judgement on who I thought was the better team based on how they previously have been playing. I was lucky enough to become the grand-prize winner."