Kaprizov scored his second power-play goal, finishing a pass from Fiala at 13:38 to increase the lead to 5-3.
Fiala scored his second with a shot to the top right corner to make it 6-3 at 4:24 of the third period, and Joel Eriksson Ek increased the lead to 7-3 with a shot in front at 7:18.
Fiala completed the hat trick with another power-play goal at 7:56 for the 8-3 final. He has 11 points (five goals, six assists) in a seven-game point streak.
"It was a huge game for us," Fiala said. "We really came at this game and we wanted to just win the game, you know, and yeah, maybe [make a] statement and show them we can play against you guys if we're going to meet them in the playoffs."
NOTES: MacKinnon has five goals in a four-game goal streak and 12 points (five goals, seven assists) in a seven-game point streak. … Colorado defenseman Kyle Burroughs, who made his NHL debut Monday, had an assist for his first NHL point. … Wild forward Zach Parise had an assist and was plus-2 in 10:56 after missing seven games in NHL COVID-19 protocol. … Minnesota forward Mats Zuccarello had one shot and one hit in 13:47 after missing two games with a lower-body injury. … Rask had three assists. … Kaprizov has nine points (six goals, three assists) in his past eight games. He set a Wild rookie record with his eight multipoint game this season (Kurtis Foster, seven, 2005-06). … Jared Spurgeon had three assists, all on the power play, to become the second defenseman in Wild history with 100 power-play points (Ryan Suter, 136). … Colorado won the season series 5-2-1.