Colorado secured the game's icebreaker at 11:29 on a quick transition play. Cale Makar carried the puck up ice and dished it off to Nathan MacKinnon in the neutral zone. MacKinnon skated towards the net and sent a drop pass to Rantanen in the slot, where the Finnish winger wired in his team-leading 11th goal of the season and marked his third-straight game (4G) lighting the lamp. All three skaters extended their respective point streaks to six games.
All but just under three minutes later, the Blues tied the score up 1-1 on a breakaway. Pavel Buchnevich sprung Thomas on a breakaway where the centerman fired a shot off the crossbar and past Georgiev at 13:49.
The Blues then doubled their lead late in the middle frame on a strike from Saad, who played with the Avalanche during the 2020-21 season. Saad collected a pass from Ryan O'Reilly - who played with Colorado from 2009-15 - from below the goal line. The winger carried the puck to below the left faceoff circle, turned and threw a shot on net that squeezed past Georgiev to give St. Louis the 2-1 lead at 18:59.
Colorado concluded the period on the penalty kill as Rantanen was called for interference at 19:58.
Just 13 seconds into the third period and on St. Louis' power play, they executed a quick passing sequence across all three zones from Buchnevich to Thomas, who found Kyrou zipping down the flank. The winger drove to the net and tucked a shot in-tight past Georgiev to extend the Blues lead 3-1.