Karel Vejmelka made 18 saves for the Mammoth (12-11-3), who were coming off a 4-3 loss to the Dallas Stars on Friday that began a season-long six-game road trip.
“We didn’t get the result we wanted,” Utah coach Andre Tourigny said. “I think we had a slow start, but we got a little better afterward.
“We had too many mistakes. We shot ourselves in the foot with turnovers.”
Prior to the game, the Blues held a moment of silence for Utah captain Clayton Keller’s father, Bryan, who passed away unexpectedly in his sleep on Thursday.
Keller, who was born in nearby Chesterfield, Missouri, but was raised in Swansea, Illinois, was overcome with emotion.
“First off, the coaching staff, the management has been unbelievable,” Keller said. “It’s beyond words.
“For me and my family, a big thanks to the Blues for everything they did tonight. They didn’t have to do that.”
On Friday, Dallas named Keller the first star of the game.
“It definitely has been a tough couple of days,” Keller said. “I couldn’t have done it without my family and my teammates. They had my back always.
“There’s lots of memories at this rink. I remember growing up and coming to games here, sitting on my dad’s lap and my grandpa’s lap. I admired those players and wanting to be out there.”
Holloway broke the ice to put the Blues ahead 1-0 at 18:10 of the second period. He took Philip Broberg’s drop pass in the left circle and beat Vejmelka high to the right corner.
“He’s such a good skater,” Holloway said of Broberg. “He’s putting the League on notice with how good he can skate. He’s a one-man breakout out there. [Robert Thomas] whipped it far side, and I thought I was going to go forecheck again and I saw (No.) 6 buzzing up the ice, so I just tried to go for the drop pass and he made a great play. I just shot it on net and was lucky enough for it to go in.”