ST. LOUIS — Jaden Schwartz scored his second goal of the game 30 seconds into overtime to give the St. Louis Blues a 2-1 victory over the Boston Bruins on Wednesday night.

Schwartz skated up the middle and fired a shot past Anton Khudobin. The Blues won for the fifth time in six games to move within a point of the final Western Conference wild-card spot.

Jake Allen made 21 saves to improve to 24-21-2.

Ryan Donato scored for Boston. The Bruins clinched a playoff spot and moved within four points of Tampa Bay for the Eastern lead.

Schwartz tied it midway through the third period with a wrist shot from the top of the circle.

Donato scored his second goal in his second NHL game. He had a goal and two assists in a 5-4 loss to Columbus on Monday night.

Donato, still a student at Harvard University, returned to Massachusetts on Tuesday to attend class before flying back to St. Louis to rejoin the Bruins. His father, Ted, played 528 games in two stints with the Bruins (1992-99, 2003-04).

Donato, who played for the U.S. Olympic team last month, drilled a shot past Allen. A clearing attempt by Alex Piertrangelo hit referee Brad Watson and the pick bounced right to Donato.

Boston, which has a game in hand on Tampa Bay, joined Nashville and Tampa Bay as only teams to have clinched playoff spots.

SHORT-HANDED

Boston was without seven key players:- C Patrice Bergeron (fractured left foot), D Charlie McAvoy (left knee), D Zdeno Chara (upper body), LW Jake DeBrusk (upper body), RW David Backes (right leg laceration), D Torey Krug (upper body) and LW Rick Nash (upper body). They have combined for 101 goals and 161 assists.

NOTES:- St. Louis RW Vladimir Tarasenko missed his second successive game after taking an elbow to the face against the New York Rangers on Saturday. … The Bruins have least one point in 12 of their last 15 games against St. Louis. … Only three Boston players – RW David Pastrnak, C Tim Schaller and C Sean Kuraly – have played in every game this season.

UP NEXT

Bruins: At Dallas on Friday night in the second game of a four-game trip.

Blues: Host Vancouver on Friday night.