By this point, however, after they finished first in the Pacific Division, can the Golden Knights' playoff victory be considered so astonishing?
Next up is either Anaheim or San Jose.
"When you think back to early October when the season started, we were thinking about competing and playing hard and seeing what we could do", Coach Gerard Gallant told The Las Vegas Review-Journal.
The Knights are the second team to win their first four playoff games, joining the 1970 Pittsburgh Penguins.
The online gambling site has the Golden Knights at +450, just ahead of the Nashville Predators, who were the favorites entering the Stanley Cup Playoffs. "They were all one-goal games, right?"
The Golden Knights now await the victor of the San Jose Sharks and Anaheim Ducks in the second round. "We've got to look at the next game and be able to cash in the rest that we're going to have here".
Vegas got a goal in the second period from Brayden McNabb to take a 1-0 lead and never let it go as Marc-Andre Fleury was fantastic in net with 31 saves which helped lock up the sweep for the Golden Knights. Having pulled goalie Jonathan Quick for an extra attacker late, Dustin Brown's shot in the high slot was stopped by Fleury's glove.
Holtby came on in the third period of Game 2 and played well, then turned in a strong performance in Game 3, making 33 saves.
Brown also hit the left post with 10 minutes to go in the third, typical of the close calls that failed to generate goals for the Kings in the series.
Quick made 20 saves, but he and the Kings couldn't duplicate the rally they pulled off in 2014. The Elias Sports Bureau notes that the only other team to sweep a best-of-7 series in its first trip to the postseason was the NBA's Portland Trail Blazers, who swept the Los Angeles Lakers in 1977, Portland's seventh season in the league. The team's odds have improved all season long, sitting 6-1 odds at the start of the playoffs just a week ago.
"It feels great. All of us, we came in with a chip on our shoulder, and we're just looking at the next game ahead of us".