Jake Neighbours and Noel Acciari scored first-period goals and Jordan Binnington made 31 saves to lead the St. Louis Blues over the Ottawa Senators 2-1 on Monday night.
St. Louis broke a two-game skid and beat the Senators for the seventh time in nine meetings.
Tim Stutzle scored for Ottawa, which has lost four of five.
Acciari pounced on a miscue by Senators goalie Cam Talbot to make it 2-0. Talbot partially fanned on a clearing attempt, giving Acciari an open net.
Acciari began the play by poking the puck away in his own zone. Then he zipped down the ice and was there when Talbot made the miscue.
Neighbours scored from close range 5:30 in off a pass from Calle Rosen, who broke loose on the right wing.
Ottawa ended a four-period scoring drought when Stutzle converted from the slot in the second off a pass from Brady Tkachuk, a St. Louis native. Stutzle leads the Senators with 19 goals.
St. Louis, which is 9-10-2 at home, managed just 12 shots over the first two periods.
Binnington, who lost two of his three previous starts, improved to 17-14-3. He stopped a backhander from Claude Giroux from close range with 5:37 left.
The Blues take on Nashville on Thursday in their fifth successive home game.