Ryan O'Reilly scored and Jordan Binnington made 14 saves to lead the Blues to a 1-0 win over the Arizona Coyotes on Thursday night.
Binnington recorded his second consecutive shutout and the eighth of his career. He had allowed at least three goals in eight straight starts prior to his shutout performances.
He improved to 26-11-7 on the season and became just the 10th goaltender in NHL history to reach 50 career wins in 77 or fewer games.
Raanta stopped 45 of the Blues' season-high 46 shots on goal and fell to 13-14-13 as the Coyotes lost by one goal on both legs of back-to-back games.
O'Reilly scored on the Blues' 43rd shot, a backhander with eight minutes remaining in the third period that caromed off the goal post, hit Raanta in the back and bounced into the goal. The goal was O'Reilly's 11th of the season and just his third at home.
St. Louis outshot Arizona 28-12 through the first two periods, including 19-4 in the second.
David Perron appeared to have scored his team-leading 24th goal of the season on a slap shot from the left faceoff circle 9:52 into the second period. However, Tocchet successfully challenged that Jaden Schwartz entered the zone offside, negating the goal.
Arizona was unable to convert on a 53-second, two-man advantage 9:38 into the first period when Oskar Sundqvist was called for slashing with Justin Faulk already in the penalty box.